I have sold on Folio on Prosper but I haven't bought yet through Folio. Prosper holds my taxable account whereas my Roth is at Lending Club. I started at Prosper in 2010 and was super conservative and didn't do that well. I never lost money but averaged 4-6% return. Better than a savings account but not where I wanted it. I had no idea what I was doing.
I decided to sell a bunch of my conservative notes and go higher risk. Consequently, my return last year was over 13%. Unfortunately, since I don't have automation on Prosper, I can only ever get 'C' notes. Because of that, I want to get into Folio but it's so bloody user unfriendly. I am pretty sure I can go to my local tech college and get some guys who could do a better job with that interface and search-ability.