Pros: Tunable color accent and weight, enough DPI to go around the globe with an inch of movement, really nice when it works!

Cons: Updated review: The original mouse I purchased died after using it only one month. I contacted Logitech support and they worked to resolve this issue by sending me a brand new replacement. I am now using that, and it is day one on May 23...so I will update if this one dies too.

Other Thoughts: I want to give this product a higher rating...really! It's just hard to do that when the first one I bought died so quickly. I am hoping that it was just a bad mouse and not a bad batch, because I am now using the replacement I was sent by Logitech. I am not too sure what is going on at Logitech these days, but between this mouse and the G5 I owned before this...I have noticed a significant drop in quality from this company! The G5 at least lasted me about a year...this one is a laughing stock at only 30 days! I hate to say it, but Logitech does not seem to be the same company as it was a few years ago!

Pros: Bright, long enough cord, low power consumption, low profile for easy install almost anywhere

Cons: None. Some have complained about the velcro that is included. I cleaned both surfaces thoroughly, applied the velcro to each piece, and then pressed and held for several seconds and it works fine for me.

Other Thoughts: I used these to add a little more lighting accent to my gaming rig. With the red led fans at top for exhaust and these placed in the front air intake, the thing looks sweet!