I will be buying in Spain and come across the company Habeno which are more competitive than interbank so was wondering if anyone dealt with them before
Personally I hadn't heard of them, but I see these reviews on TrustPilot - those that have used them seem very satisfied with the service. best of luck whatever you do...
They are simply a mortgage broker. But seem to deal with many non locals, so probably understand the requirements for non Spanish residents to get a mortgage better than some others.