This firm is totally unprofessional , rude and abusive. The staff are unable to give a clear direction and behave in an aggressive manner toward the public. A simple mistake of missing an entry only sign caused an unprofessional tirade with no ability to explain correct procedure. You would only hire them if you wanted no return custom and to totally rid yourself of clients.
I've used them before and been unhappy with the service provided. I think the lack of competition is a big factor in the lack-lustre service.