I use Rosie & Lisa at The Professionals St Mary's. I've also heard good things about Laing & Simmons.
As for Raine & Horne....well, I'd run, run as fast as you can. I have used them in the past and didn't have a good run with them.
Now, that WAS quite a while ago, so I wouldn't judge my opinion solely on that, as PM's move on over time, however just recently I had a tenant evicted & Raine & Horne took them on. According to the PM, they didn't ask to see the ledger, which would have shown a very poor payment record, and they also didn't check default data base's like Tica either.