Pros: I love the grip. One of the most comfortable mice I've ever used.
I love the colors. I put it on wave and it's almost hypnotizing.
Braided cord is nice

Cons: I've had the same tracking issues as many people here. Every 30 seconds or so, the mouse becomes unresponsive and the cursor won't move. Sometimes the cursor would just take off in one direction on its own. I tried all the steps Razer recommended including updating the software and firmware and I'm still having this problem. It kept cutting out in the middle of game of Company of Heroes which is 100% totally unacceptable.

Other Thoughts: I've been building my own gaming computers for almost 10 years and have gone through many mice (either because I wore them out or grew tired of them) and this is the first mouse that I've ever had this problem with. Really a shame because I loved everything else about this mouse.

Pros: Great feel, very ergonomic.
Nice lighting.

Cons: Horrible software makes mouse unusable.

Other Thoughts: I highly recommend you cross this mouse off of your list of options. In the first hour of use, in the middle of my CS:GO competitive match the mouse stopped working. I had to re-plug the mouse every 20 mins. Updated the firmware, did everything the Razer rep told me. Still no use. This mouse is crippled by it's terrible software. Do yourself a favor and buy from a more reputable company like Logitech.

Pros: Cool lighting, decent feel for gaming.

Cons: Beware something seems to be wacky with a lot of these... The sensor and/or firmware is wacked out, Cursor would stop moving and would take a few seconds to kick back in mid game, Mouse finally stopped working all together.

Other Thoughts: Sent the mouse in for RMA 2 weeks ago and still no exchange from Razer RMA dept... To bad I have loved other Razer products but this one has been a letdown.

Pros: Plugged in worked right away , Synapse did update instantly and worked flawlessly in Win 10.

Cons: I had headset plugged into Razer BlackWidow Chroma keyboard and when mouse plugged in USB throughput it caused noise audible only to people on Steam voice chat. Think the Chroma pulsating was doing it. Moved it to rear of pc and no issues at all. Since cable long enough no issue,

Pros: Feels great, looks great, works great

Cons: non that i can think of

Other Thoughts: at first i was worried that it will have bugs with the application razer synapse but it's all smooth sailing. best feature i find was that it can calibrate the sensor to the razer mouse pad your using :)

Pros: You get cool stickers in the package and it has braided cable

Cons: Can't use for gaming because the drivers for this mouse cause a multitude of problems such as

-screen tearing
-micro stutters
-HUGE FPS drops when mouse is moved
-

Other Thoughts: Shutout to David and Luna from CS:GO they where there when i discovered i wasted 90$ on a mouse i cant even use it took me 3 months to find out why my games suddenly stop running good i never connected the dots until today and if i could i would send this mouse back and get a different one of equal value. Please do not waste your hard earned money on this mouse get one that does not require any software to run besides the drivers.

Pros: I bought this mouse really wanting to like it. It looks nice. Feels nice. A little lighter than I'm used to but that's not necessarily bad. Cord is braided and tangle free. Colors and logo leds with lots of configurations.
I read the stories on here and Amazon about firmware updating and intermittent disconnects, thinking I can fix that!!
Nope
Firmware update did nothing to resolve the problem. I'd walk away from my PC, come back 10 mins later and it'd be frozen and I'd have to restart in order to use the mouse again. This is after the firmware update which was successful and complete properly.

So basically I felt like I bought an $85 anchor. I got newegg to rma it and I bought s corsair m65. Not as colorful but it works and it feels way better designed and constructed

I've yet to be wowed by a razer product aside from the copperhead blue.

Cons: Major fail for nearly $100 I'd expect the bugs to be worked out before its out to market

Corsair strikes again

Pros: - Cool lights

Cons: - Mouse would disconnect infrequently in the middle of games. Didn't happen with previous mouse.
- Sensor is awful; has built-in acceleration (which is bad) and Z-axis glitch
- Shape isn't great. For $80 it should be the most comfortable thing I've ever held.
- Rubber on the sides feels uncomfortable to grip.
- Have to install bloaty drivers and create a Razer account just to adjust any settings on the mouse

Other Thoughts: This mouse has a lot of acclaim from "professional" reviews but the truth is that no competitive gamer would touch this mouse with a 10ft pole. So why should you?

Pros: When it works correctly, it is smooth, fast and accurate.

Cons: This mouse has issues. I purchased one and my friend purchased one. Both mouse take periods when they have to be unplugged and re-plugged in order for it to function at all. It also takes small periods when it becomes unresponsive and after a few seconds it starts working again. This may last for a few times or a few minutes. It has lasted for up to a half an hour.

Other Thoughts: After purchasing this mouse, the first Razer product I have ever owned. I believe I will never buy a Razer product again.

Pros: Looks great, lighting is awesome. Fits my hand perfectly, feels great. The rubber on the sides is wonderful, the grip is insane. My cursor is so much more accurate then my old gaming mouse, COD game play has improved in 2 days. This mouse is smooth, sexy, and as good as sliced bread. Buttons are wonderful, you can feel when you've clicked them and they return super fast. Mouse wheel feels great and you can scroll left and right (didn't know that when I bought it).

Cons: I didn't buy it sooner, and now I want to spend more money on more chroma items.

Other Thoughts: This mouse is so good I tried my old mouse after a couple hours of using it and I cringed.