I really like the philosophy behind AeroFS and how I get to keep my data on my computers only, but recently the app is taking up more and more RAM. I've seen it creep up to over 1GB until I restart it, and that's only with a 10GB shared folder between 3 machines.

Aside from that, I've never really looked back since deleting Dropbox and my account there.

Hopefully this round of funding brings about some performance improvements :)