This is one I keep coming back to, primarily because of its simplicity. The slots that I need are for batteries (MVP, iTaste v3, VTR, Vamo, Provari, et al.--but only one or two for true Ego's) and atty/
tanks (both large and mini versions). I don't need to display my half-filled bottles, nor do I particularly need separate slots for large numbers of drip tips. And it's easier to keep building materials in single box or toolbox that I drag out when needed.
This, on the other hand, since I don't have a 134, might make an acceptable lightsaber out of a cheap tube mod...