i went with 676 and button layout is pretty good for me i almost never use the glow button. the only button layout complaint i have is there is only a & b No c which is annoying if you have twc explorer dvr box. but i just progrm the * button as c and it is tolerable.
i got mine from bluedo fine service decent price i picked them because they seem to have a decent return policy if i did not like it.
Jake

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Leave the gun, Take the canolis.