To be honest I thought it was going to be a joke. It's actually interesting as an experiment, but they need bigger N to find out if it can possibly work. 50-100 would be more reasonable. Tho maybe it's good to start with 8, it might be impossible to even find 8 reasonable people willing to take this deal.

Anyways I doubt it's going to work. They're competing with banks at this point. But their per-company [management] overhead is an order of magnitude higher than for a bank. Most people willing to take up the offer will probably be scammers.