GnuCash is solid. One thing that I love: I have full control over my data, and its stored as a simple xml (also supports SQLite, but why use more complex when simpler works just as well?)

I have a few (comparatively minor) complaints about GnuCash, but they're around UI. Things like: it would be nice to assign all matching (eg Regen) transactions to a selected account, and stuff like that.

But overall, having something that is A) simple and B) I control fully, beats everything else.

The principles of free software show, I guess.