I bought this too because I found that it did perform very well on a GN review but the software is buggy. Best thing is to revert to 2.0.8, it actually has no problems, just reverted to it the other day. You have to have a clean install, remove everything, drivers included, restart and install.
EDIT: Well I will say 1 small problem which has already been mentioned, you don't really get full control of the fan curve, the top and bottom most values on the curve are fixed. They can't be moved which is kinda dumb.