After reading various threads on iTunes media organizational software I thought I'd give TuneUp a try. I work in communications, I build/admin systems and code so I know what I'm doing. This POS screwed up half of my ~3,000 songs! TuneUp is supposed to search for any unmatched songs, you can customize what tags you want, and THEN you approve the changes. I never approved the changes as I noticed many were wrong, but it did it any ways. Now I have to spend the time manually fixing songs, and some are completely wrong. A few members here warned about companies promoting their software in threads, it wasn't here that I read about TuneUp, but be warned. This app sucks!