Pros: BATTERY LIFE,quality build,ease of install,range
Cons: nothing really
The bottom line: Logitech just makes good products plain and simple..good quality and great battery life
Well this is the 4th Logitech wireless (Wireless keyboard/mouse combo-MX DUO,LX500,PS2 wireless controller and this controller for the PC) product I have purchased in the course of a few months and I continue to be very pleased with their products.

I gave Logitech a shot many years ago with the purchase of a marble mouse and wasn't too impressed but their wireless products are a different story altogether.The battery life still continues to amaze me.I am not too sure of the battery life rating of this controller BUT I imagine it is on par with the one for the PS2...which since purchasing has NEVER needed new batteries in about roughly 4 months not bad on just a couple of AA batteries (battery life is less with rumble feature activated..don't like rumble myself so keep it off..but even with rumble battery life is something like 50+ hours...amazing..with rumble off..like 70+ plus hours).

Setup of this controller is pretty straight forward which starts with installing the software THEN plugging in the controller when prompted to do so (sometimes when installing USB devices,like printers, follow the order of operations and install the software first...trust me saves many a headache later).
Actually with this controller tossed the install CD and went directly to the website for updated software/drivers as with almost every computer product always feel its best to start out with the newest software/drivers available.The USB reciever chord is also pretty long so you don't have to worry about it not reaching the computer.

The only games I have used it on are old school video system emulators (NES,SNES,etc.) and its works w/o a hitch.The ONLY very small thing I don't like about this controller is the location of the rumble button and the mode button...they should have switched it around with the buttons above it (so use to the SELECT and START buttons being located where the rumble and mode buttons are..kinda messing me up) but like I said very small problem.

Also the range is very good as I tested it at around 20ft without any problems.Just to let you know don't notice any interference with the other logitech wireless products.

Not sure if I mentioned it but the build of the controller is very nice.It feels like if it was to be dropped it wouldn't shatter into hundreds of pieces...feels like it can take a beating,durable.This is a really nice controller that doesnt keep you pinned to the small computer screen.Also just got a new video card with an S-Video output feature so got that outputting the desktop to my TV coupled with the wireless controller it feels like owning a few new video game systems when using full screen mode...sweet setup.

If you have been eyeballing this controller and wondering if you should get it or not trust me get it you will be very happy with it as I have never been a BIG fan of wireless products BUT they have really improved the over the years.