Pros: Tracking is great on most surfaces as promised, decent grip on my big hand. For 15 bucks, can't really complaint, however...(see below)

Cons: Scratches, scratches...wait...more like is chipping off slowly...like most cheap chrome spray on plastic, it gets chipped off, even when used gently, my 5 years old logitech nano is in better condition then this. I'm a bit disappointed

Pros: Comfortable, Nice touch sense, Reasonable price (got it while on sale), Beautiful Blue glow underneath!
The Mircrosoft Intellipoint is good, which can adjust the size of the cursor on sreen, I think the setpoint software from logitech can not.

Cons: The charging base is cr*p. It's not easy to keep the mouse firmly on it to get charging.

Other Thoughts: I already have 4 mouses.... Could not resist getting more when some nice model is on sale.... I should stop the wasting.

Pros: comfortable, fast, great value,

Cons: a little large if you were using with a laptop but it is a great desktop mouse.

Pros: I absolutely love Microsoft mice. I purchased this one to take to work and so far it is great at what it is supposed to do. The price was around $15.00 which is excellent.

Cons: I understand that I only paid $15.00 for it and that it does what it is supposed to do just fine, however for it to come with scratches all over it. I mean deep really deep scratches, it looks like someone took a knife and just scratched it all up, seems this is a common problem for these mice. I mean its a new mouse not a refurbish so why is it being sold as new.

Other Thoughts: I would of rather paid $5.00 more for a mouse that didn't have scratches on it. Those things just bother me.

Pros: I upgraded from using an Intellimouse Explorer from the olden days (like 7-8 years ago? lol) so this seemed like the current day equivalent to what I had. Microsoft mice have always served me well and this was on sale so I bit!

Like everyone else is saying, it feels very ergonomic and fits very well into your hand. Buttons are standard, and with Intellipoint software you can customize it quite a bit. I haven't experienced any issues with the USB receiver, works very very well so far.

Overall for the price, I am very happy.

Cons: Included software does not work on Win 7 x64. Go to Microsoft's site and download it. Easy fix!

Recharging station is a bit awkward, but once you get used to it, not bad.

Other Thoughts: I don't know just how long the rechargeable that's included will last, but hey! Just the fact that it did have one with it included is a plus!

Pros: Tracks on everything I have tried and is pretty responsive.
Took it into kitchen and was changing my music from 25 ft away.
I put a Eneloop battery in so I will see how it holds a charge with a real battery instead of the cheap battery it came with.

Cons: Only thing I can see is maybe the charging unit might be slight problem.
It really doesnt lock into the charging unti real well.

Other Thoughts: My only regret at this point is I didnt buy 2 at 15.00$ shipped.

Pros: This is of course subjective: but fits my hand perfectly. Really comfortable and provides great control and tracking.

Cons: Charging "Station": keep knocking it off the little nubs.

Other Thoughts: I scrapped the rechargables and went with regular batteries; battery life is acceptable, but could be a lot better. Does not reduce the usefullness of the mouse so still gets 5 stars.

Pros: It does work on any surface as described, and I like this mouse.

Cons: However, it came with a few flaws on the surface, apparently not caused by shipping ...

Pros: Works as advertised! Nice forward/back thumb buttons.

Cons: A little big for my hand....but I have gotten used to it.

Pros: comfortable to use
good looking -- with all the blue bling out there this is a matching piece. Cool un-standby glow blue glow.
High resolution and precision.
Rechargeable with a docking station for recharging.

Cons: signal propagation could be better. Any metal obstruction like your case reduces range to a few feet. It probably should come with a USB extender to allow mounting fob in line-of-site of mouse as others do. Possibly on the recharging station??? Duh!

Recharger should be USB powered, not wall wart powered.

Tracking is moderate -- the blue (cool) LED can't track as well as many modern mice. My laser mouse easily and accurately tracks on my hand, pants, and a sheet of white paper. Sadly, this one is less good but is adequate -- like something from 5 years ago.

Charging station is not easy to dock and any bump can cause dislocation.

Other Thoughts: It's very cool looking, but I can only recommend you look for something else unless you find this in a ten-buck bin.