Summary: I was looking for a decent mouse to replace my original Apple bluetooth model, and didn't want to spend what an OEM model costs. This is a great alternative, and works just fine. It feels solid and comfortable. The only reason I can't give it 5 stars is you have to tie up a USB port for the mini receiver. Bluetooth would be nice, but otherwise I've been happy with it's performance thus far. I got a great price on it on --ay, and wouldn't pay the ridiculous retail price.
Summary: PROS: I love the size, comfort and number of buttons on this mouse. I even enjoy the wireless ability of it, however... CONS: This mouse dies so quickly. I use this mouse to game with (WoW). As a mouse, the side button I was using for Ventrillo PTT only lasted 2 months, then died. I was in a bit of a spot, so I went back to Target and got another one until I could save up for a real gaming mouse (i.e. one that lasted longer than 2 months).
Summary: Why there is no dimensions in the web page? I purchased this mouse a few months ago, there is nothing wrong with the mouse, it works fine etc. but I can't recommend it to everybody. Only for those having small enough hand. I bought this because it's marketed as "full-sized" -- well, isn't that a bit relative? I think my hands are normal sized but this mouse is so small that my hand doesn't rest well on it.
Summary: Plug n play in older win XP machines. Good buttons. Mine came shipped with name brand batteries. Bought 3 of these for the office now. Like many wireless devices, they seem to have difficulty if you bury the receiver in a rear USB port on desktop boxes. Ours are usually on the floor next to or inside a desk. Grab a USB extension cable to bring it out of no-man's land and the problem is solved.
Summary: This mouse is almost the perfect size - a bit bigger would help. It has just the right amount of buttons on it for desktop or gaming use, and the set-point software is easy to use and adds some nice features to it. Response time is fast, but it is innaccurate! You can run it along a straight edge, and the pointer will still jump up and down. My old Kingston mouse did not do this.
Summary: Mouse is very good. It has good precision. Size and shape are perfect for me. Someone doesn't like its weight ( it has 2 batteries, so it's a little bit heavier then an average mouse), i do. BUT this mouse should be used on the good surface. If you don't like mousepads, don't buy this model, you'll definitely be disappointed. I've tried it on different tables (and chip black mousepad) and had the same problem: slow and irregular speed.
Summary: I have had this mouse for over a year or two now. It is a fantastic mouse, and I use it for gaming and what not. However, recently it started lagging and twitching. I would be in the middle of a game and I couldn't move my mouse up or down or left or right. I had to slowly move around, to get it to function. I contacted Logitch Support and they replaced it hassle-free right away! Overall, a great mouse and great customer service.
Summary: I have had this mouse for about a year maybe year and a half and it is a great mouse. It replaced my old Logitech Mouse which Im sure was the same exact mouse just slightly different. This one had the unique and easy to use Unified Receiver that my old mouse didn't have. Anyway this mouse performs greatly, it has a really good sensitivity compared to other mice and even other Logitech mice. The forward and back buttons are a nice touch when browsing the web and gaming.
Summary: overall I'm happy with this purchase. I pair it with the wireless K800 illuminated keyboard and the unifying receiver works as advertised. I just have to turn it on, no software or driver to install. in fact I didn't install anything.
Pros: ergonomics, back button, right size for me, unifying receiver works