Tldr: if you're a light sleeper, want to sleep before 1am, or don't want to spend an hour commuting into the city (one-way), look elsewhere.
Host and her boyfriend are good people and were mostly kind hosts.
However, I chose them over other hosts because I thought that I could get a decent nights sleep without any issues whatsoever. Turned out I was wrong.
FYI, I am a light sleeper.
Even though the environment in which they live in is relatively quiet (not really, keep reading), the hosts themselves stayed up till about midnight to 1 AM on average every night, making conversation that could be heard through the walls right up until they went to bed. All this could easily be heard through the wall. They also have a downstairs neighbor that cranked super loud music two mornings (of six) during my stay there. There also happened to be some very noisy construction that began at 8 AM on a few of the days there as well. All in all, a total disaster when it came to sleep quality.
When I told the host that I decided to choose her place because it was quiet, she responded "yeah it's quiet, but we're not." Okay then.
Moving on. Abbeywood is pretty far from central London, which is where everything is happening basically. The nearest train station is also a slightly inconvenient 15 minute walk from the hosts residence. So getting around was a bit of a hassle.
Oh yeah, taking showers was a nightmare. It's hard to describe, but the host has an open concept bath tub with no shower curtains or placeholder for the showerhead itself, so you're literally doing a circus dance trying to take a shower. It's ridiculous.
But hey, at least it was cheap.