Ive used PC-Task a bit on my amithlon box over the years, and it's surprisingly fast with a little grunt behind it. I actually used it for some work quite comfortably when Amithlon/os3.9 was my only computer, so it was pretty handy for me. I also spent a lot of time playing Wing Commander 2 and Magic Carpet with it. In my opinion it really is an impressive emulator, especially for the time it was developed. Not only is it very fast relative to the hardware its running on, but seems to do its job vey nicely.