The Alieno fits perfectly into my hand and as a thumb-firer the fire buttons are in a perfect position for me when the display faces towards the palm of my hand.
Granted, this makes the display more or less useless in actual use and the up/down buttons are a bit of a pain, but I marry my
mods with specific RTAs, so I almost never have to adjust anything.
It's easily my most beloved single 18650
device.