Did you notice this whole thread? App-lounge updates do not install, stuck at 0%. It did attract a few FP3 users if you read to the end.
Perhaps I should say that I do have FP3 with a15 (but I did not do the recent upgrade) and have App Lounge working. It would be fair to say that I don’t find App Lounge free of problems without spending some time on keeping Storage clean.