The Easy Vape is the one I'd go with for an ultra cheap box vape. It has a 5 yr. warranty when sold by an on-line dealer. But the price there is $150. Since they've started appearing on eBay at $50-60, the 5 yr. warranty seems to be iffy. I would contact the seller and ask what the warranty info and procedure is, since the auction you linked does say that you get printed warranty info. Easy Vape doesn't have a website, so you need to make sure that someone, either the seller or the company, can be contacted for warranty service. If any eBay seller won't give you any info about warranty, I'd move on to another. Plenty of sellers offering this model.
A cheap vape will at least give you a good intro to vapor. Long term, I would want a unit where the vapor path doesn't go through the guts of the vape, something like 7th Floor's DBV, where the path is isolated to the heater tube and heater. But you may not want to spend that much, just to find out that you prefer the more wasted high you get with smoke. Do keep in mind that vapor is a cleaner high. You're not getting a bunch of smoke toxins that smokers believe are all part of the cannabis high.
itriplots said:
look at something like the vaporgenie (for around $50).
The Genie is a very simple and reliable portable that will give you some great hits, but since we're talking safety, any vape that works best with a regular lighter, and is designed to suck the flame into the heating chamber, will give you some partially burned carbon (soot). Whether you're better off with a soot producer, or a box with unknown internal components...
, but it's something to consider.