I'm a daily Audition user. Version 3. Started with version 1.5. I got a deal on it because my brother works at Adobe.
All I ever wanted out of it was the editing and analysis features because I already had a DAW. It's been outstanding in that regard. Noise removal, spectral editing, surgical equalization, tone generation, format conversion, phase and frequency analysis, RMS measurement, MP3 encoding. It's never crashed, can deal with any file format, and integrates nicely with SONAR.
Adobe didn't add very many of those features, though. Cool Edit Pro does 90% of that stuff 90% as well. Adobe never had any interest in getting into the DAW business. It merely wanted to close a hole in its product line, namely a good audio editor to augment its main focus, which was video editing. (I also got a copy of Premier back then, but it sucked.)
People who had been using Audition as a DAW were furious at Adobe's betrayal. Most simply migrated to another DAW. But to this day, no DAW integrates editing features as well as Audition. Audition + SONAR has it all.
A shame it doesn't like Windows 8. But I understand; I don't like it either.