AQUAX  So far, I've been very impressed. It's a nice clean GUI, and the features keep improving with each version, and the bugs are fewer.

It's unfortunate TiVo has completely dropped the ball on Mac support, and we're forced to work around their restrictions, but my hat's off to this developer for creating a very Mac-like solution.  
(Version 1.5)

AQUAX  Oh, also utilizes BOTH processor cores for dual systems, which few rippers seem to do yet, especially Universal Binary ones.  
(Version 0.6.1)

AQUAX  Works wonderfully on my MBP 1.83GHz. Set presets for audiobooks and music easily. Interface is a bit kludgy, but certainly usable. More than enough options and settings for any purist. Only real complaint is that it's a bit daunting for a first-time user, but certainly not impossible. Can't beat the fact that it's free.  
(Version 0.6.1)

AQUAX  Phenomenal. Very Mac-like in the UI, but handles Windows created PAR, RAR, etc, with no sweat.  
(Version 3.6)

AQUAX  Makes Galleon much more Mac-like, easier to use, and overall, better!  
(Version 1.4.210)

AQUAX  Works wonderfully, without any problems whatsoever. Only request would be for a simpler install. I can do it with no problems, but I would surmise it would be a bit more difficult for someone like my mother, who has limited "manual installation" skills.  
(Version 2.3)