I stayed in the Zen room for three nights while visiting Providence for work. The house was clean and quiet, and serviceable as a place to sleep. If you're looking for the basic amenities of a guest house without the responsibility of socialising, this might be the place for you.
There were several other lodgers in the house at the same time, sharing the same bathroom. We didn't communicate at all other than a nod on the few occasions we saw each other, and there wasn't any time clashing over shared space during the time I was there. I also didn't meet the host in person at any time. Everyone was quiet and respectful of each other's space.
My room didn't lock from the outside, and had a small hook latch from the inside. I didn't have any problems with security, though it might disturb some folks. Additionally, while there were no problems with the wifi, it wouldn't have been a suitable place for extended remote working as there was no desk and it would have felt disruptive.