Alan's place was very quiet, clean, and well-provisioned. He was doing some repair work outside during the day, but it didn't bother us (seemed to try to time it for when we stepped out). They do have a small dog that barks when you're coming or going, but she's completely silent once you're inside so not an issue.
You may want to note: (1) The floors make popping sounds as you walk. I barely noticed since I'm used to old wood floors, but others found the noise a little grating. (2) Be prepared for a few spiders, as with any basement (didn't bother us). (3) The interior (2nd) door can only be locked while you're there and sometimes pops open when unlocked. We weren't concerned; it doesn't change security since all hosts have a key/code for their units.
Communication with Alan was great. He reached out before my flight landed with check-in info. We also asked the day before for an hour later checkout and he was very accommodating.