Rock solid. Records audio from ANY Mac software or any device that will connect to a Mac and has audio - even camcorders and analog video converters (I use it via iMovie). Splits clips automatically when there's a gap between songs (easily customized) and does it seamlessly. Never crashes, never pops. Supports all the major file types. Comes with a couple dozen useful plugins. This plus GarageBand (for editing) and you're all set and at only $32 it's a steal!