Not sure, but after reading your review I´m asking myself, how it´s possible, that the live site section over there on MisterEstate.com contains actually over 180 sites which were build with MisterEstate?! Would be impossible, if it were true, that MisterEstate doesn´t work at all.

MisterEstate is based on the over 2 year old EstateAgent komponent and surely, there´s a lot what could be better. But do you know a perfect software?

As I wrote above, customizing presupposes one is familiar with the basics of webdevelopment. If you´re not able to customize it, you shouldn´t make the component responsible. It´s 100% opensource!