I must confess that I hadn't read the email very carefully, which you really have to with house crowd. Do you think that the 10% is of something other than profit. I agree it is strange wording otherwise. I invested in a couple a while back, but then I found that things worked differently from my initial understanding. I am still waiting for a couple of worked examples. The email also hints at clearer information which will be good. When they provide a worked example from initial investment to payback I might reconsider.
(Except I'm reasonable well exposed to property through P2P lending. And the tax structure looks poor.)