We stayed in Jenny's house with our 16 month old son. Everything was perfect! Jenny was super nice, the house is very well appointed, maintained and is decorated and furnished with style. The location is great for walking to Golden Gate Park, the beach and many other wonderful restaurants and attractions.
For guests traveling with little ones, there was a travel pack-n-play which was very helpful as it meant there was one less large object we had to pack. The house isn't baby-proofed, but we didn't find it difficult to lift the few things that were breakable or otherwise not compatible with a toddler out of the way. There is also a great playground off 38th st.