+1. I know some insiders at MS and their build/test/deployment story is universally very crappy. Things barely work, held together by curse words and duct tape.

Googlers like to joke internally that Google looks like a race car from the outside and like Moving Castle from Hayao Miyazaki'a cartoon from the inside, but that's not the case at all. Comparatively speaking it's a race car inside and out, it's just that the insiders don't know how shitty things are elsewhere.

P.S. I heard Bing is different, but I have no visibility into it, so can't comment.