I used to work there and feel about the same. Google’s internal tech is really good where it needs to be, and barely good enough where it doesn’t. Borg, Blaze, d, google3, codesearch, etc. are all very good. Almost everything else falls by the wayside.

Generally programmers at Google are better than programmers I’ve worked with outside of the company. But not by leaps and bounds. And in my opinion it doesn’t matter as your pace of development is so much slower it matters little how good of a programmer you are.