I tried it and it worked fine. Don't think I've re-installed it since they went from v0.993 to v0.997 (new file format, have to re-enter my information).

That said, there are others that do more. MileTracker goes to each site and checks your balance, no more and no less (at least not that I remember). I think there are other systems that will help you track individual transactions, make sure they post, etc., etc.

andrew