I've stayed at a lot of airbnbs and have found my share of occasional hairs in the shower, and dust bunny in the corner. But the amount of hair on the couch/towels/bed, the number of mystery smudges on walls, towels and shower, and the volume of dust/hair bunnies rolling around the hardwood floors gave me the heebie-jeebies. The place itself is fine, kinda cute even, it just needs a GOOD throughout vacuum and wipedown before I would recommend staying there.
Check-in was super easy though, and I like that it's walking distance to downtown Sunnyvale.