Seems like a pretty okay value for that mouse.
Though i cannot imagine that being comfortable for me, something about the shape...
Personally i am in love with this one:

Trust MaxtrackDPI button for 2 DPI-settings, plug and play, accurate (BlueSpot technology) and comfortable.
Oh, also 2 buttons at the side (used by default for browsing, back and forward).
The dented side is perfect.
I trust Trust.
The only issue i might have is that it's color goes away after a while of usage.
Currently i have some 'bald' spots on my mouse on my left button and on the front where it touches the palm of my hand.
But for it's price, it was the best i could get in stores really.
When my other one died in a horrible accident (not really), i went to the store and eventually bought this one again, just because i was so happy with it.