Based on my brief exposure, Spectacles is a very polished product. Everything about it had an aura of breezy, forward-moving fun that is usually absent from tech: the purchase experience at a super-cute vending machine that displays a rendering of the glasses on your face; the yellow carrying case that doubles as extra battery for the glasses; the effortless installation experience; even the round video that invites…
I think the aesthetic of the glasses is flawed, not the technology. They look really goofy. They should have gone with a standard design like Wayfarers, and not something few people could realistically look good in. If they're aiming for mass appeal anyway.
The problem was that nobody knew what to do with them, and Snap being setup the way it is, it's too hard to take cues from what other people might be doing with them because it's hard to find their videos.
The only thing I bring them out for now is to make little cooking videos for my friends, the hands free POV camera is really good for that, and uploading a little narrative is pretty effortless.