5 stars for host Amnon, who was responsive and helpful at every turn.
The flat itself was clean and conveniently located, the beds were comfortable, and we enjoyed our stay. The flat is smaller and packed with more furniture than I expected from the pictures but it was certainly workable.
The flat is in an older building whose stairwell and entry doorway smelled pretty bad (moldy/musty in the stairwell and like urine at the entry door).
There were a few relatively minor issues (only a single set of keys, turning on the oven tripped a circuit breaker, no spare toilet paper, and the washer had a bunch of mold in the soap dispenser) so I would say this is not the best choice for a germaphobe or someone who doesn't want to deal with the quirks of a diy remodel in an older building.
But if a comfy bed in a convenient location with a friendly helpful host is what you value most, Amnon's place is an excellent choice.