What killed G+ for me was how hard they made it to actually read anything. Originally it was okay, but as time progressed they favoured images over text, and then kept spreading text out further and further apart. I took a screenshot at one point where I highlighted in yellow the actual readable content, making up a tiny proportion of the page: http://i.imgur.com/d8qwVpc.png

Of course they had years of experience in helping people read content with Google Reader, so that had to be shut down and lessons ignored. Then they made sure there was no API, or even RSS feeds, so no one else could make a more efficient reader either.

Or in other words, did anyone at Google actually try using their product? (I seem to say that a lot about different Google products.)