Initially sceptical about going the online route but so glad I did. Saved a hell of a lot of money (£4k on the most expensive high street EA who quoted me!).
The team at Hatched were very professional and prompt in returning my emails and calls.
For me this really is the future to selling homes so why wait? The only possible downside is that you do viewings yourself, but I didn't mind that. In fact I think I did a lot better job than some the EAs I have met in searching for a new place!