We spend in Carol's apartment about 10 days during our trip for Go.0gle IO 2018. The apartment was really nice and close to the Mountain View downtown (about 10 minutes by walk). Out host was really friendly, helpful and kept us updated with any information we needed (from some minor issues with hot water in the apartment during one day to really helpful tips and recommendations what to see and where to have a nice dinner in MTV downtown - Carol listed all nice spots and sent to us, really appreciate it!).
One major issue is the wifi connection - if more devices are connected to the network, the speed is really bad, but probably it's the issue with the router.