I've got the 2012 Razor Mamba, best mouse I've ever had. Thankfully it was a pressie so I didn't have to pay for it!
Got quite large hands and fits perfectly, can use it wired or wireless, and the novelty is you can change the colour.
EDIT: I think this mouse is actually exempt of the 'wired is better' - I actually can't tell the difference between this and wired! I've always been a firm believer in wired being better for gaming too! I play Starcraft 2 as my main game to quite a high standard, but its equally as good for FPS type games like BF3...
If you would like an alternative opinion, here is mine.
I had a Logitech G7 for years and loved it. Logitech have not replaced it adequately with any of the current range. Because the G7 lasted me for about 7 years I was of the school of thought that a mouse is an investment and went for the Razer Mamba 2012.
I wanted a wireless mouse so I could control media player from my bed. I now have a Nexus 7 and HTC One S and use Unified Remote as a trackpad to control the PC so wireless is no longer essential for me and his works better.
1. Battery was disapointing and needed to be charged every 3-4 hours of gaming. I could then play with the cable in and continue but that was not the point.
2. Battery died within 2 months and the replacement has now given up the ghost. Warranty for the battery is only 6 months which should tell you something. Razer want £30 for a new battery. Have tried an unbranded off amazon for £8 and it is crap and doesn't hold charge very long.
3. I have a reasonably clean desk but find the Mamba picks up small bits of crud and i need to wipe near the laser hole a couple of times a week. Never had this with any mouse before, gaming or not.
4. The pads on the bottom are not that smooth and find the pads scuff easily and drag a bit. After light use for 9 months it doesn't feel smooth so would have to look to buy new pads at extra cost.
These are the real problems I have experienced.....
I feel completely done for £100 as I did pay for it. Have never felt chuffed with it. I buy a reasonable amount of tech and try not to have rose tinted glasses but am not overly sinicle.
Personal/subjective gripes......
1. Doesn't feel like a £100 mouse.
2. I find the lights a bit gimecky and too bright in my bedroom so have them switched off.
3. Updating is a bit hairy and no firmware update since January 2012 (I think).
4. Doesn't feel that accurate for me. The micro adjustent is too fiddly and I can't get the result I want.
I found this post because I am looking for a new mouse. I will start my own thread to get advice on what will fit my requirements.
I hope this is useful for you and gives you something else to think about.
FYI: I am looking at the Logitech G500 as it is the same shape as the G7 which I loved even though it is wired. I am hoping to get other suggestions to look at but is very difficult to choose a new mouse a there are so many to choose from.
Good luck with what you decide to buy.