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Not for large collections anymore.
TuneUp was a nice addition to collectors like me, especially because it was kinda flexible and would handle large collections quite nicely. With the new update, version 3, this is gone: it became a nightmare and a truly awful machine-clogging beast that lost all its best qualities to become an automated service that frequently mislabels your songs.
If you do have a small-medium sized mainstream music collection, you'll be fine. If you want more brains to your collection, you'll have to find something else.
Pros: Gets info on year, track number and other deep info.
Drag and drop system
Cons: Incredibly slow for +10,000 song collections
Even more inflexible to mismatches than previous versions.