I have a Vamo V1 (chrome), 2 x V2 Vamos (polished SS and brushed SS) and an SS V5 Vamo. They've all been excellent, especially considering the price.
I much prefer the V5 and it's OLED display. However, the removable top cap piece does taper down a little so 22mm atties don't look quite right, in which case a V4 would probably better suit (or a V3 if you're blind and vape in the company of blind people only).