Bonnie is a good host, your room will be set up before you arrive with basically everything you need. You will have your own bathroom with a stand up shower with shampoo, body wash, loofa, towels, etc. The stand up shower is not very wide so if you are a larger person, this won't work out.
You will also have a small kitchen with a mini fridge to put any small items you will need.
The bed is a single so if you have more than one person there, they will need to use the second bed. The bed is a fold down spring mattress so it's not all that comfortable but not bad.
The door to the unit does have a lock but only lockable from the inside so if you are worries about personal items, maybe keep them in the car? I left items there while not in the unit and was safe.
I found that it was fairly warm and there was no ac so the basement windows needed to all be opened in order to cool the room and make it less stuffy. Fair warning that if you do this and you are a light sleeper, you will get woken up by street noise and the neighbours ac unit (bring ear plugs).
You have a spot in the driveway to park your vehicle and is large enough to fit two tandem.