I went to the other extreme, sold my house with an online agent for £99. Paid £50 extra for a sign, and absolutely nothing else. I took all the photos, drew a floorplan, wrote the details, used their website to list it, it was just like selling a bit of tat on ebay.
They took the phone calls, I did the viewings. I even printed brochures to hand out in viewings.
Honestly I'd say it was less hassle than using an agent (I can't stand waffle, and most of their descriptions are terrible), and it saved lots of £1000s. It doesn't matter who the agent is, it just needs to be on Rightmove and Zoopla, the rest is irrelevant.
Two viewers complained they didn't speak much English when they phoned them, but that didn't stop both of them offering and one buying it.
I set a sensible price, made it clear that we wouldn't take offers below that but also weren't trying for a bidding war for a higher price either. We ended up with 5 buyers all wanting it for the asking price but all waiting to sell theirs. I just told them all it was theirs if they sold first. About a month later one sold, to a first time buyer, so all was go.
£149 well spent. Saved £1000s vs an estate agent, and £10,000s vs a house buying company. All done in a couple of months. We moved to a holiday park, with a bank balance I've never seen before, and looked for our next house at our leisure.