I used to live in Redwood City and San Carlos. In the 4 years since I left the neighborhoods have only gotten nicer. Gracie's place is the perfect location for visiting these cities and the valley. It's down the block from Stack's for breakfast, down the block from there to a Starbucks, 3 minutes to Whole Foods with a Safeway across the street. Ya, convenient. There are great shops in San Carlos along with a bunch of good restaurants.
The studio is small but beautifully laid out and decorated. And Gracie runs it all well.
I highly recommend a stay.