This was my take away too. Looks great, but personally if I'm going to use this for a docs site, or for a wiki, or some sort of knowledge base, I'd really need to have an out of the box theme available. There are some there, but not enough variation for my liking. So rather than a quick win, this has to be put on the pile of "take a look and determine if I have time".

Not that it takes away from what looks like a great product, but that's the journey I went through, as a regular, overly-busy employee-startup founder, 14 hours into a Saturday. "I love it, but it's over my time-cost threshold if it needs custom themes".