That ebay pic looks exactly like the set I bought 2 years ago at TSC on after christmas clearance for $90 (except my plastic case is red instead of black). I have used it quite a bit (I have burned half of the largest sized bottles of ox/acetylene). I am very pleased with its perfermance for the small investment I made. The regulators are still working well and I bought a larger cutting tip for it at TSC for about $10 and a 25ft hose extension set. The only issue I have is when I have it turned all the way up cutting thick metal or old arc welds with the tip close to the work. Under these conditions the tip will overheat after about 5-10 minutes and the flame will "go out" and it will hiss (I assume its burning internally). I have to shut it down for about 5 minutes to cool and then it will work fine again. When doing light cutting (3/8" or thinner) it can cut all day without this malfunction. The oxygen mixing valve by the cutting handle is a bit sensitive when you set the flame mixture, but as long as your hands are pretty steady, its not a problem.
The bigger investment will be the gas tanks...