Nice project, but after sharing flat for 15 years with people from all over the world I've learned that the flatmate that doesn't click with you, can perfectly

Nice project, but after sharing flat for 15 years with people from all over the world I've learned that the flatmate that doesn't click with you, can perfectly click with another roomie. So I doubt the tool will be accurate, it's highly relative. Personally I'd prefer a site for meeting potential flatmates that are techie/startuppers? In the valley chances are that 70% of potential flatmates are somewhat involved in the industry, but here in EU is much difficult. For instance I'd like to move to London or Berlin for some months but finding techies for sharing a flat is not easy... Does anyone know of a tool/website for this?