Re: Why bother?
"it seems nobody has quite nailed this form factor with the possible exception of Apple" - sure, if one like the looks of retro teen with cigarette over ear(s). The reason Apple's device performs so well (likely with exception to job #1 that is the sound quality) is its form factor (allowing for better antenna placement), separate BT radio per each earbud and increased power levels at which they operate. Unfortunately none of these is free - they are pricey, look stupid, are likely prone to falling (depending on activity user participated in) and built in battery life is only acceptable.
BTW, Samsung's design looks like a copy of original Jabra Elite Sport. These has proved great (as far as BT can deliver), especially for the refurbished price I've got them for.