My biggest take away is that Apple has failed to advance the state of the art in any meaningful way here. I guess hype is always hype, but people really expected that Apple would do something that would knock this out of the park - a week long battery life, a flexible watch face, or a bracelet style 360 degree screen or something else that would just reset the whole space. It didn't happen. This device may sell well (or not) but it's basically a peer to the current entrants in this space, not a generation ahead like many people expected.
I have doubts about the crown thingy -- turning a watch crown while the thing is on your wrist is quite uncomfortable. I understand it's a big crown, but still doesn't seem ergonomic to me.