I love this program, it doesn't try to do too much. I keep it running all the time and when a track comes up without artwork it's right there to search for me. I like the way it overwrites existing artwork, making it easy to correct or update covers. Developer seems quite active in issuing updates. Two things I would like to see:

1) The ability to search tracks that don't have album info. Yes, it's a crapshoot, but sometimes you get lucky or at least get clues as to what album the track came from. You can use the built-in browser to search for whatever you want, but AAA won't load the tracks so there are additional steps that make it easier just to switch to my regular browser.

2) The ability to quicklook/expand/zoom image search results with a mouse action (right click or double-click). It's a nuisance to have to keep hitting the space bar when I'm working primarily with the mouse.

I could ask for it to give me a list of tracks with missing artwork but then it'd probably turn into one of those bloated expensive apps that doesn't work well...