Pros Just right hand feel. Great size, great glide, great bump for my palm to rest on, great weight, sure actions of all the buttons. Optical scroll "wheel" is insanely great - a remarkable innovation.
Cons Haven't found anything to complain about. Seriously the best mouse I've ever used - and I have dozens of crappy and broken mice in my junk drawer to prove it. Only con (and it doesn't affect me) is that there is no Windows version.
Summary I find that the optical scroll is really great. Basic installation is very easy. You use standard Mac System Preferences to adjust tracking and scroll speeds - and I've found they have all the range I need to have these functions work perfectly. The Targus specific drive lets you set what the thumb buttons do - very easy, and it has really useful built in choices, as well as ability to customize.
The scroll has a feature that lets you flick your finger, and the scrolling continues automatically until you touch the scroll sensor again. Kind of like the scrolling on an iPhone. Very neat - I don't know of any other mice with this feature.
And the left and right buttons are distinct and have definite clicks - unlike the Mighty Mouse which makes it hard to get a reliable right click a lot of the time.
It is OK for left handed people, too. Shape is totally symmetrical except for the location of the thumb buttons.
Maybe it is because I have the latest version of OS X, but I really don't understand all the complaints about not being able to adjust the scrolling sensor to work at reasonable speed and sensitivity. It takes a little bit getting used to, but I'm finding I have much more control over scrolling than I did with the Mighty Mouse ball. And this one won't get dirty and stop working after a couple of months.
I would think the USB version of this mouse would work almost exactly the same.
There is a delay in re-acquisition of the mouse when coming out of sleep, but this is a "feature" of Bluetooth, and not this mouse.
To summarize why I think this is the best mouse I've ever used:
Just right size, shape, weight, and buttons (including only two thumb buttons).
Really great scrolling control with optical sensor instead of mechanical wheel or ball. Cool auto-scroll gesture.
Very stylish design - but that's just a bonus.
Designed to work on the Mac from the ground up. (But Targus should release a Windows version asap).
Pros The overall design
Cons Even with the mac control panel set to minimum, the scroll speed is uncontrollably fast. And not being able to turn off lateral scrolling makes it even worse
Summary Unless there is a way to better control this mouse, it is unusable and I will return it.
"not the best"on by blairmclachlan
Pros Easy to connect and set up. Tracks ok.
Buttons have good pressure sensitivity, clean and positive clicks and easy to use.
Cons I found the optical scroll very jerky and disappointing. I set the scroll preferences to the lowest available setting, which toned it down a little, and just makes it just usable but still not easy. The scale settings above minimum seem just impossibly su
Summary I will still use it rather than the track pad or my wired mouse, but the optical scroll really needs some more work.
Pros OK Tracking, not bad connectivity, novel idea
Cons Precision scrolling is next to impossible, making this mouse next to useless if you use scrolling to zoom in/out in PS, AE, Maya, etc. Often find myself scrolling w/out even touching the sensor since it can "see" my finger when it's hovering over it.
Summary A good idea poorly implemented makes for a bad product. Swing and a miss.
Pros Good size, good battery life, comfortable for long periods of time, good range, accurate tracking.
Cons Scrolling via the optical sensor is uncontrollable. Even after months of daily practice, I am seldom able to scroll down just a bit. It jumps to the bottom of my page or spreadsheet and then I have to start over.
Summary Unimpressive, especially for the price I paid. Most mice track well, but without the ability to control scrolling, this mouse is on the chopping block for me. I'll be going back to the standard scroll wheel mouse for $20.