"I've had the kit for over two years now; I have used it quite a bit for welding, brazing, and cutting. Comes with a #0 cutting tip and a #1 welding tip.
I bought a #1 cutting tip to cut through steel over half an inch think; and that tip drains the tanks very quickly.
I also bought a #1 heating tip - the tanks were emptied in less than 10 minutes using the tip.
If you have a lot of biggger tasks, you are much better off getting the normal size tanks (275 acet, 600 cu ft oxygen). If you weld around your home a lot, you can chain the tanks someplace and just get long hoses for your torch.
The little tanks are only 10 and 20 cu ft and it is a drag to keep having to get replacement refills (and if you want extra replacement refills to keep around, they charge more than 100 dollars deposit for the two little containers)."
What is your level of technical expertise? Professional