I'll chime in. It takes an average of 10 to 15 minutes to BOT-rip a CD to my external SSD. Some longer! Very slow. On the other hand, the files sound significantly better than any other ripping technique I have used, including internal and external pc-based CD/DVD drives, with various ripping software including dBPoweramp.
So I will take the slowness, for the audio benefits. After backing these files up x 2, I don't think I will hold on to my silver discs. Given the time it will take to rip my whole collection, I doubt I will be doing it ever again. Too many discs, too little time...