I found them okay-ish. In fact, I felt the cooking was not uniform because it felt more "bready" towards the periphery (yes its supposed to be like that, but this was more than standard pizzas).

NB: things may have improved, I had ordered in Jan 2017, after seeing one of their vans going by in Mountain View.

They had multimillion-dollar robots to pay for - you want good cheese, too?

Truly, the customer is never satisfied.