Anyone use Total Control 5?

Who here uses a total control 5 as a replacement for the Dreamcast mouse/keyboard? What are your experiences with it, positive or negative?
For those that don't know, you can use this adapter called the Total Control 5 on the Dreamcast to hook up normal PS/2 keyboard and mice to the Dreamcast. Unfortunately there's not much info online about this adapter so I wanted to know how good/bad they are before I drop $60 on 2 of them.

Video games don't affect kids. I mean, if Pac-Man effected us as kids, we'd all be running around in dark rooms, munching magic pills and listening to repetitive music.