I love the stuff!
I actually find it easier to print with than PLA or ABS - stock extruder, though I use an E3Dv6 hotend. Heat temps are the same/comparable to regular PLA, so it should work fine in the Buda too.
Definitely don’t print on PEI. I’ve printed it on the PET tape that came with the TAZ4, atop ABS slurry, on bare glass, and on glass treated with PVA (basically watered down elmers glue - gluesticks would work well too). My best suggestion is bare glass, and I’ve found it’s easier to remove when the bed is still warm, unlike just about every other material.
Another tip, don’t print too fast (it can go surprisingly faster - I’m guessing faster than Ninjaflex - but don’t go at like 100mm/sec). Don’t overtighten your extruder’s idler, either - it WILL deform before it gets to the hotend, turning slightly oval shaped, which’ll cause weird cloggy problems.
I find the stuff is great for buttons, or using THIN flaps of it to create something similar to a living hinge. The thicker the flap the stiffer the hinge. If I made more things with wheels, I’d use it for that too.