command-t doesn't rank results in the right order. 90+% of the time I find myself having to scroll through the results to get the file I'm actually looking for. Fuzzy-finder, while a lot slower in running time, is actually faster to use and requires less mental load, since the right result is almost always the top one.

Unless Command-t can implement the ordering right, it's pretty useless.

I keep hearing good things about the PeepOpen plugin though.