I got a $20 sale offer, and decided to try it. Honestly, it was amazingly quick at indexing 2100+ apps (about 3 seconds) and works quite well. I like the automatically associated documents and the multiple "mini-docks".
That said, it won't index anything on a drive that isn't the root-drive, or at least it won't for me. I have seldom (but not -never-) used apps moved off to a second drive. I added that into the program's search profile, but it simply never indexed it. I did a complete reset of the database and a few more things, but it simply won't take the other volume.
An indexer that won't index anything but the root drive isn't particularly useful, frankly. I did submit a support ticket. I don't expect them to respond, since i have several other tickets open, some for over a year, I believe, without response.
But I hope they'll at least read it, and issue version 5.1 with this glaring oversight fixed. Perhaps second drives are working for others, but certainly not for me.
Too bad, as there are some nice features here.
Back to LaunchBar...