It's smooth, responsive ("but" incoming after this), fast, and fun, at least a four star experience. BUT: as I use a non-standard keyboard layout, I attempted to bind the "o" key to movement. This seems to work in the menu, and the key works elsewhere on my system, but in the actual game it didn't work at all for movement. This brings it down a good bit in my books. The key did eventually get working, the trick is you have to bind it to "abilities," and then after you unlock abilities (I think that's level 3, so about 30 minutes of gametime give or take) the key will work normally from that point forward.
