Chorch was a very nice and welcoming host for my girlfriend and I. Although there was a bit of an issue with directions to his apartment, the rest of the stay was great. If you wanted to interact with him, then he'd be happy to, but he'd also leave you be if you just wanted some privacy.
The building was quite old so of course it wasn't the cleanest, but that was to be expected so it's not a big deal. The location was great, as it was right near the Gothic Quarter and lots of things were walkable or you could metro from the Urquinaona station.
I'd definitely recommend staying wth Chorch if you're looking for a cheap place with a great location and a friendly host.