Our family (3 kids plus a babysitter) stayed here for two weeks.
There was plenty of room for everyone but unfortunately that didn't mean quiet nights. If you are traveling with babies who are Jetlagged notify the neighbors and bring earplugs. This isn't a place where you can apply your sleeptraining skills. Our two screaming babies kept everyone up for days.
That said, this house is in a perfect location and you couldn't ask for more. Since we didn't have a car during the days while my husband was at work, we could walk anywhere with the stroller. 10 minutes to the beach (which is priceless), 5 minutes to Abbot Kinney or Rose Avenue.
For grocery shopping you can hop in a $5 taxi to Whole Foods (or walk the 20 minutes). The area feels very safe, and the surrounding blocks are beautiful for a stroll.
The house has literally everything you need. The kitchen is well equipped and we were able to cook every day without missing anything.
The downstairs room is quite cold and dark in the morning, which is perfect when the weather is hot outside, but not so great when you have kids that are still crawling on the floor. The upstairs, however, is bright, warm and lovely. That said, the kids absolutely loved it, especially the cupboard full of toys.
Currently there is construction across the street as well as next door which is still an empty lot. Both of them can start as early as 7:30am which didn't bother us because our kids wake us up earlier than that. However the noise during the day was sometimes unbearable with the windows vibrating. We once decided to have lunch on the patio but had to abort, because it was that loud. That said, they weren't working every day, it was pretty random. Out of the two weeks there were maybe 4-5 bad days, plus we were always home during the day because of the baby's nap schedule. So if you are exploring LA during the day you probably wouldn't even notice it. Sarah was upfront about this, so it wasn't a surprise. Just annoying.
Sarah was an incredible host who always got back to us within minutes, and we definitely had a million questions. Super patient and very accommodating. She even supplied a second crib since we have twins.