> My comment is based on how easily I understood the two projects at a first glance and user feedback I saw.

You understood the cofounder project because of your background. But for the vast majority of people, residen.se would be easier to understand.

And besides, how easy it was to understand from the site is something that can easily be changed with a few hours of work. What you really want to know is the viability of the underlying business model. And I find it difficult to see very many situations in which serving entrepreneurs tight on cash is better than trying to take a cut of the (very large) real estate pie.