just had a read through the kickstarter page (it didn't occur to me to look there for a product who's campaign closed over 12 months ago) and I can't say I put much store in the comments.
A lot of it sounded like foot stamping (where's my device? I want it now!!) though given the time lines that's probably understandable.
I also hadn't realised that they were still very new (seems they only started to ship around March?), so pretty much everyone is an early adopter and should be prepared for buggy releases.
FWIW it doesn't appear that the existing competition is much better (assuming the pebble isn't much chop), so maybe this is an area to watch (boom boom)....