Clean room.
Semi-quiet (can hear other house mates).
Lots of pillows, comfy bed.
No lock on door.
Address is incorrect (though a few doors down).

My scale:
* - Something horribly wrong here.
** - Wish I had stayed in a hotel.
*** - On par with a hotel in terms of price/cleanliness/service.
**** - Glad I chose this instead of a hotel. Better.
***** - Went above duty, did more than required!!

Why a 4-star?
Room offered pretty much everything a hotel does minus the daily cleaning, and was just a slight bit nicer/cleaner. Nice people.

How could it be a 5-star?
See above rating scale.
-Unfortunately, needed to clean a shirt for the next day, so we asked if there was on-site laundry, the hosts said no. 5-star would be if they offered a quick use of their own facility, or offered some advice on nearby places to do laundry. Just got a "no". It's fair, not your job to provide it. But doing things that you're not obligated to is what separates 5-stars from 4.

-We let them know we were heading out to dinner. 5-star would have suggested a good place nearby, or given us *some* information about the area.