Jack and Lillian were very responsive and added a variety of amenities to make our stay convenient (e.g. snacks upon arrival, good quality cookware & dishware, dishwasher, coffee maker, washer/dryer, laundry basket, various shampoos, nice towels).
The main reasons I didn't give it 5 stars were: (1) faint cigarette smoke--which aggravated my asthma; (2) somewhat questionable location. We had to keep the windows open during our 4.5 day stay to try to air out the smell. We also didn't sleep in the bedroom; instead, we set up the sofa bed and dragged it closer to the living room window, which felt safer to keep open vs. the one in the bedroom (it opens up right into the parking lot).
The first night, I slept poorly because I had to use my inhaler at least once/hour. Also, someone in/near the complex was yelling loudly in an agitated voice, which worried me. By the second day, the smell started to disappear. It was pretty stressful at the start of our stay not knowing if we'd have to find an alternative place if the smell didn't go away.
I will add that my partner does not have asthma and was fine with the smell.