DEFECTIVE--widespread problem with this model
I have bought many refurbished products and this one unfortunetly is just a plain lemon. There is a widespread common problem with this mouse. The mouse will not charge. When you put the mouse in the charging cradle, it will start to charge and then flash red and try again. Over and over try to charge and then flash red while never actually charging.

Note to Amazon: Love you guys but I would push this batch of junk back to Logitech. It isn't worth taking negative feedback on defective products. I would pull this product off your site immediately. How bad could it be?? Pull a refurbed Logitech MX Revolution mouse off your warehouse shelf and plug in. If you get a flashing red light after 5 minutes of charging or so, DEFECTIVE.

Really is a Revolution
I've had this mouse for about a month now and I can say it is just plain awesome. It is wonderful for everyday use or even hardcore gaming. The battery life is pretty good and the sleep mode saves a lot of juice if you forget to shut it off when not in use. The battery also fully charges in a good amount of time i'd say from about 20% to 100% capacity in about an hour or less.
Ive had absolutely no problems with this mouse whatsoever, though i realise a month isnt a very long time. I am so in love with this thing that I will be ordering atleast another one just in case this one dies on me. I've seen this mouse sold in Best Buy for $100 so this is a steal on here.
All the buttons and wheels need to be experienced. As a gamer i think my favorite feature was the scroll button on the side which lets me minimize any application or switch between programs. Good for switching music tracks, reading forums, multiple accounts on MMO's etc. the browser search button is also very nice. One click will open your internet browser to whatever start page you set. the two side buttons default purpose is a forward and back page option which has it's uses as well. From my understanding all these buttons are fully programmable but I'm pretty happy with the defaults so havnt messed with any editing software. The fast scrolling wheel works as advertised and is very useful.
This mouse is also very comfortable to use. It fits my hand very well and the thumb rest is a nice touch. It also looks very pleasing and not to gaudy like some of these "Gaming Mice" I was considering. Do yourself a favor and get yourself one of these!

Outstanding MX Revolution Laser Mouse
I found this Wireless mouse to be everything I wanted. Several programable buttons and the "frictionless" scroll wheel are very nice features. The setup software was easy to install and use for setup of the mouse functions. The battery life is excellent and it autosleeps when not moved for a few seconds to save on battery. It also recharges very quickly in the docking station. All of my previous laser mice had a bright red laser light but this one emits no visible light, must be how they get the long battery life..... I recommend this product.

Highly Recommended
Logitech MX Revolution Laser Mouse (Refurbished) Black - 996000006

Well worth the money. Arrived looking brand new and works like a charm. It's really convenient to get rid of the mouse cord, and it has an extremely comfortable ergonomic design. Best of all is that it's rechargeable, so I'm not always replacing batteries. Two thumbs up.

It's ok...but not for gaming
This is a nice feeling mouse and is spaced well for men with larger hands. It works well for many things, but it's currently being used on an older XP system and lags a bit. When web browsing and scrolling through pages, it will pause once in a while then catch up with itself. It exhibits the same behavior while playing shoot 'em type games (like Call of Duty, etc). We're going to try it out on a new Vista system and I will update this once it's tested. At this point, I can only give it three stars.