I'm quite heavy user, about 100GB data, some hundred k files, constantly synching software projects over 3-4 machines and also work with those on different mach

I'm quite heavy user, about 100GB data, some hundred k files, constantly synching software projects over 3-4 machines and also work with those on different machines. Since I got rid of too long paths, there has been zero problems with sync. It just works and it is fast. My only complaints currently are the slow initial sync and the stuff infinite will fix. For professional use I don't see the price as a problem. For personal use I would love some "cold storage" with cheaper per GB price, but familiar interface (just drop pictures to some folder and they would disappear from disk and end up in storage). With the Dropbox brand there might be more opportunities in business world. Companies are for example still moving lots of stuff via (S)FTP.