Let me try to hit all the major points off the top of my head. The DeathTaker has a nice feel to the hand, but it is a mid-sized mouse and may be uncomfortable for users with bigger hands. It is not left-handed optional and the smaller nature of the mouse lends better to a claw grip user than my lazy hand resting on the top use that I prefer. The feet, while only using two, gives the mouse a great surface to glide on. I did find the mouse a bit on the light side for daily use, but the additional 27 grams of weight made it feel much more solid and the mouse tended to over shoot less with the weight in it as well. I would certainly look forward to a larger version of this mouse, as the DeathTaker is just a bit too small for me to use past this testing phase.
Then we have all of the sensors, switches and software to discuss. The Avago laser sensor is very good at tracking at any speed I could deliver, at all of the DPI levels and handles lifting the mouse with very little movement of the pointer or weapon as it may be. For my tastes the buttons are in odd locations, but once I tried tinkering around with a claw grip, the buttons do feel a bit more in place than they do with the relaxed grip. One complaint I do have is that the X and Y buttons have a very muddy feel to the switch where as all of the others feel very solid and you know for sure you clicked them.
I am also not a huge Macro user, but using them for volume control make me feel icky every time I adjusted the volume. As for the software, it is up there with a lot of the better suites I have seen thus far. A ton of optional button assignments, basic and advance Macros with timing delay, full control of just about everything shy of the amount of pressure needed to move the mouse or activate a button and a lighting options list that is second to only one other mouse I have seen as far as the total number of selectable colors for the pair of LEDs that backlight the DeathTaker.
In the roughly two weeks of constant use I got to have with the DeathTaker, the only real issue I personally have with it is the size, it just isn't in my comfort zone. I will say this though, the DeathTaker has been a pleasurable experience in gaming with basic functionality and it has allowed me to simplify both the use of Office and Photo Shop, as well as having multimedia keys on the mouse, all with the simple switch of a profile. In reality I think it is the simple and easy to use nature of both the mouse and the software, along with a good feeling shape and design, even for a guy who thinks it is too small, I could deal with this mouse if I had to, but I have too many as it is and being uncomfortable in any way with a mouse is just silly to me.
For those who have smaller hands or those who prefer the claw grip, Genius delivers a laser gaming mouse worth all of the $60 pricing average to acquire your own DeathTaker MMO/RPG gaming laser mouse.