[m_mueller]

1) That's good to hear about unlimited history - however that wasn't the issue in my case - the files either didn't show up in in the history anymore, even though it clearly wasn't past the grace period, or the showed up and reported an error when trying to open them. So the last I checked, there were non recoverable states in Dropbox and I therefore would never trust it as the only backup (and neither should you).

2) The CPU hog thing is very inconsistent - it probably doesn't affect all OS version/hardware combinations or they would have solved it since long ago. All I know is that I regularly see the client go to 80-100% usage of one core for a rather long time, meanwhile taking forever to sync just a few files - which clearly shouldn't happen in an application that mostly does IO. There are probably certain file types it has some problems with, but I didn't have the patience to analyze it yet, I simply switched to SpiderOak.

So no, I just can't trust their code quality.