The transparency of the window is a weakness. Some folks have started putting up posters and curtains.
But the real issue is that they transmit basically all the sound. Fortunately there usually aren't conversations going on just outside people's offices, but if two people are talking while walking down the hall or the person in the next office is yelling at folks on hangout, it's not much quieter than a cubicle.
Oh crap! "Private" offices with glass doors, yeah. So that you never immediately see who enters your office because the door is behind you and you have to turn around. Also with monitors visible to everyone who passes by. This is way worse than any open plan office.
Polished concrete is beautiful and striking, of course, and at some point software development became a creative profession rather than an engineering one, and we stopped mocking people who put form over function.
Pretty interesting people working there, I see.