I see there hasn't been updates to this thread but since it was useful I thought I would provide my experience. I tried two bluetooth mice. The Razer Orochi 2013
and the Logitech M577
. I thought I would love the Razor and did for the first day. I then picked up the Logitech for comparison.
The Razor was nice. I liked the feel and weight but there were some major annoyances. The most annoying thing about it is it's sleep function used to preserve battery life. If you don't use the mouse for a few minutes it enters sleep mode then when you go to use it it takes 5 or so seconds to reestablish the bluetooth connection. Then there is the fact the it only has a stated 30 hour battery life. It is on the small size and is a whopping $70.
I thought I wouldn't like the Logitech mouse because it seamed so basic. It turns out I actually like it (not love it). It is just your basic mouse. No ergonomics or bells and whistles. Since most bluetooth mice seam to be on the small to tiny size I would consider this one as medium, not quite full normal mouse size. It is squarish shaped so it is ambidextrous. There are no side buttons which is a bummer but the scroll wheel (I love Logitech's metal scroll wheels) has a left and right motion which gives you the same forward and back features the side buttons normally give you. This mouse does not suffer from the sleep issue the Razor did. As long as the computer is on the mouse stays connected and usable without interruption. It is marketed as having a year long battery life. It is $40 normally but I found mine for $30. For a major brand bluetooth mouse I find it well worth every penny of $30 and could use an additional feature or two at $40.
With all bluetooth mice there will be a 5 to 10 second delay when waking from sleep or powering up. It is the nature on bluetooth. I hope Logitech comes out with a normal size ergonomic bluetooth mouse. It seams most companies are going for tiny touch mice which I find really annoying. That is just me though.
Also, just an FYI, I have a wedge mouse as well and really don't like it. It is too small, too square with hard edges, and always turns on in my bag. I only really use in confined areas like on an airplane tray.
I would like to try the M.O.U.S. 9 and the R.A.T. M but with mediocre to poor reviews and not being available in stores near me, I just don't want to deal with shipping returns.
I hope this was informative to some.