Hi there,
We've just sold a flat by Clapham South tube and initially had this listed with a local agent (charging 1.5%+VAT) we struggled to negotiate much though James Pendleton did offer 1%+VAT I beleive (we were going to use them after the minimum period was up with M&P).
The estate agent we had didn't manage to sell out property and we had it on the market them then for 8-12 weeks. I can't quite remember.
In the end I used House Network. They charged £500 for photos, floor plans, arranging all the viewings - everything! All we had to do was show people round. They are currently also chasing the buyers solicitors and ours, making sure all goes smoothly. I must admit I have been so impressed with them. For the money I think it is incredible.
I should add that we did reduce the price when we listed with them but as we were saving 10K in fees we were happy to do this!
I'me sure that Jonathan's post certainly is true and that a good agent will help to smooth things out should any glitches arise but we were happy to take the gamble and were very glad we did.
Hope that helps a little!