I had an alright stay in Jax's basement. Plumbing, wifi and electrical all worked without issue. I was in town to run the Toronto marathon and stayed 2 nights.
The host was not friendly. Firstly communication could have been a lot better. I needed to modify my reservation prior to arrival (change to leave a day early) and had no response from her for over a week. It was getting down to the wire and I still hadn't heard from her so I was forced to contact airbnb to get a hold of her. When she finally responded it was to chastise me for both contacting airbnb and wanting to save $28 on an extra night. I also asked if I could store my book bag for a few hours while I completed the marathon. Checkout is at 10am (hotels don't even have a 10am checkout) and I just needed 2 extra hours to leave my bag somewhere. She responds to that request with "you want to checkout early and have me store your bag? You better leave me a great review". A simple yes or no would have sufficed. I thought once I arrived it would turn out to be an attitude misunderstanding but no, Jax was as cold as ever when she met me at the door with the key. Perhaps this won't bother most people but I found it uncomfortable and unpleasant.
As far as the listing:
The room is mostly a storage/workspace space with bathroom and kitchenette. You must walk a narrow path to reach the bedroom area. The ceiling is crazy low (probably less than 6 feet) so be prepared for that and the lighting is really bad. Extremely dim and not enough lamps. The space is clearly in the midst of a remodel because there is work and house hold supplies everywhere.
For one person planning to spend a very limited amount of time in this basement for no more than 2-3 days and on a very tight budget, this room might work for you.