I used this agent while searching for a 5 bed student flat/house let. Although they didn't have anything suitable at the time they rang us immediately when something came up within our budget and area.
They were very efficient at setting up a viewing and we were able to secure the property on the same day. The even kept the office open late so that we could pay our holding deposit.
These guys appreciate customer service unlike some of the large chain agents I have dealt with in the past.