We had a great stay at Joan's place! The back patio is even bigger than I realized and provided space for our small kids (ages 5 and 2) to play. The house is well laid out and comfortable. It's definitely a good choice for folks with little kids. There was a pack 'n play and lots of toys. My son had a really hard time leaving the Fisher Price bus behind as he had grown very attached to it.
The one weird thing I would flag to potential guests is the shower. It's pretty short. The top of the shower head itself is about 5'6" off the ground, so you'd have to be about 5'3" or shorter to not have to crouch to wash your hair.