Yep, I've driven a WRX, STI, my RS and a Legacy GT twice. The Legacy is more useable day to day. It feels just as fast as the STI to me. The difference is pretty slim anyway. The power is more usable too.
The car looks much nicer than the STI. I don't want to drive around every day in a boy racer car. The only thing the STI has that I would want is the variable center diff.
The interior is nice on the Legacy too. There is a reason it won best car in Japan the year it was introduced.