I concur with nearly everything articulated by this reviewer, whose experience with the Band nearly matches my own. However, I have not found the Band to be bulky or uncomfortable to wear, but then I am a diver and am used to wearing dive computers, bottom timers and compasses on my wrist...now that's bulky! Actually, though, I think some of the bulkiness of the design is driven by the size of the dual batteries required to obtain the battery-life of a device with the features that the Band has. With the current battery size and placement, a curved display would not touch the skin of the wearer's wrist, unless the back was flat and the face curved outward. That would, however, further add to the bulk of the device. My guess is that we won't see a curved display until there is an improvement in battery technology.
I am a bit surprised that the display isn't more scratch resistant. I don't know if other similar wearables have more durable displays, but a device that is designed to be worn on the wrist during workouts should be made out of something other than the plastic/conventional glass that the Band seems to be. However, that would have, no doubt added to the cost for this first generation device. At any rate, although I typically don't like screen protectors, I have used one on my band, and don't even notice that it's there. I am surprised that my Band is showing little to no wear considering that I basically wear it 24/7, except when I'm charging it.