They seem to be really good quality. Had a go bending mine up and managed to re-coil it to the right diameter, but had some issues trying to bend the lead outs. I either wasn't careful enough (probably, it was getting late) or a tube bender is required for the tighter bends.
So a tube bender is in the mail, and I'll resume working on the coil when it arrives.
The coil after unpacking:
I didn't do any in progress shots... too busy swearing and sweating.
Definitely on the cards for me depending on how I go with my ramp times when I finally get a brew on. I bought one of those cheap ass pipe benders that are only really designed for copper, it worked then the dodgy rivet started bending so I replaced it and it's working again with straight tube with a lot effort. good luck and look forward to seeing the final shot.