After reading this, I'm left to ponder why anyone would think this was a potential "unicorn" business where it made sense to take big losses to grow revenue. After all, as the article notes, cleaning services like Merry Maids are a well-established thing. (As are personal references for housecleaners.) That doesn't make a potential new entrant bringing a better UX to the process a stupid idea. But it would seem to limit the potential opportunity.