It seems to run pretty well for me, but it lacks the customization options offered by the other launchers. I do like the App icon in the upper left that opens up the app menu, but that one feature isn't enough for me to stick with it. As I mentioned before, ever since ADW EX was updated to work with ICS and above, it's my go-to launcher. The free version doesn't have as many customization options as the Pro version, but it's worth giving a try to see if the pro version is worth it.
HOWEVER, if I want to do some really creative home screens, like you see on mycolorscreen.com, then I switch to Nova, which I prefer over Apex. I'm interested in checking out TSF Shell and Next Launcher, but 15 minutes isn't enough time to get a feel for a launcher before getting a refund. Anyone have any input on either of these two?