I had one like this
which I think I bought from Lakeland for about a tenner.
Just to be clear it's not 'oil drum' sized - its probably about a foot long.
I found it to be OK and I got my tenner's worth from it - but I didn't run out to buy another when it died. For one or two people at most it does the job. It's easy enough to transport and was no problem to light and it burned OK.
At home I now have a Weber which really is very good, and a home made oil drum BBQ which I use for large gatherings and/or large cuts of meat. On the road I now carry a Grilliput, which is just as good as the small S/S one was for one person but it's much smaller and lighter. The downsize of course is that you have to be a bit more careful about the ground you make the fire on.
I hope that helps in some way