Most of the Airbnb's I've used are far closer to what I'd expect in a suite at a moderately nice hotel
I think that AirBnB operates very differently at different price points. Once you're paying more than $x, you're right- you basically get whole apartments. And below $x you're paying less than you could ever expect for a hotel room. But in the middle is this awkward area where you're paying a relatively decent amount to stay in someone's spare room, and have to deal with the extra complications that brings but without the larger benefits.
I think that AirBnB operates very differently at different price points. Once you're paying more than $x, you're right- you basically get whole apartments. And below $x you're paying less than you could ever expect for a hotel room. But in the middle is this awkward area where you're paying a relatively decent amount to stay in someone's spare room, and have to deal with the extra complications that brings but without the larger benefits.