As a fairly experienced landlord with a few rental properties, I get calls from various agents all the time. Long before I'd ever used Ludlow Thompson I began to realise that their sales calls were always more polite, less pushy and generally more friendly than the other ones I was getting. So when it came time to let my flat again I figured they were worth a try. I haven't regretted it - they found a tenant swiftly and with the minimum of hassle, the various checks were carries out efficiently and the rate was very fair. The lady I dealt with, Neli, was always friendly and more importantly quick to update me (there's nothing worse than having to chase agents for info on your own properties!)
I'd definitely be happy to use them again.