Rented a flat through Belvoir for 6 months last year and didn't really have any major issues with them and the staff I dealt with were always good to talk to. Flat was clean on arrival and most of my emails were answered quickly although it take them a while to fix the tap in the kitchen which was loose. Prior to exiting the flat I was always kept well informed of when someone was coming to view the property and I got almost all of my deposit back as well which was good although the initial deposit was quite sizeable (more than one months rent). I'd be happy enough to rent through them again.