Jim's outstanding. I've stayed in now two of his units, and I definitely recommend them.
This particular stay, there were several other guests renting other rooms. I overheard one guest say, "Isn't this just the best airbnb you've ever stayed?" and another guest grumble say, "This place isn't quite what I expected..."
Be aware, these are not a typical cush modern apartment. He has all the modern conveniences and he's done an amazing job transforming the spaces, but these are old historic buildings in mountain view, and so treat them with the same expectations. The contrast of the two guests really goes to show sometimes how you approach the airbnb makes a big difference.