Hmm, that is why o have heard to referred to as Krapton.
Lots of different choices and solutions. Everyone has a favorite and demons. I've used Kapton for literally thousands of print hours, and it has worked fine for me, on my printer. Don't know why others have problems with it - I can only think that their printer is not adjusted or suited for it. YMMV. I got a glass plate for my Replicator years ago, but never bothered to install it because the Kapton was still working fine (I had gotten some 5 mil sheets that were much easier to install than the 1/2 mil tape [tho the tape worked fine too]). Now a year or so ago, I got some GekoTec sheets and started using that - which was much more expensive... and worked about the same as the Kapton (tho maybe it'll last longer without replacement).
Now with that, the DaVinci is standard with a glass bed. When I finally started to use the DV (a few months ago), I first tried ABS/acetone solution (aka ABS 'juice'). Didn't like it much 'cause it was messy and I didn't get good results, but that's just me. I didn't really pursue it. Others have good luck with it. I was planning to use Aquanet, and had bought a can many months ago, but couldn't track it down (disappeared after a move). So I didn't give that a try, though I hear it works well also. I wasn't thrilled with the idea of spraying inside the DV anyway, as the glass bed isn't removable. So the last resort, that I was skeptical of, was glue stick. Tried that and it works very well - easy to apply, easy to clean up.
I almost forgot painter's tape. I tried that for a month or so at first with my Replicator. That worked Ok but had to be replaced often. I guess that works well with PLA, but I've never used that much. The delta I have is supposed to use PLA/tape, but when I get it running I have a GekoTec PLA plate that's supposed to work for that. (I've got the GekoTec stuff sitting around because I backed their Kickstarter a few years ago.)
There are other coatings that people swear by, but I don't have much incentive to try or switch, since what I have is working. I've also heard that PETG on glass needs nothing else - I'm skeptical - it didn't seem to work when I tried it on the DV, but I think that was extruder problems so I can't say.
In short, I think it's safe to say that pretty much everything works, but not for everyone, on every printer.
And on a final note, the CTC that was working so well, quit when I changed filaments - slight difference in diameter I suspect, and the crap CTC extruder isn't adjustable. So I'm in the middle of changing to another extruder that I've got sitting around. Only slightly less crap, but it's adjustable.
