I bought some of the BuildTak for both my Robo3d and my replicator 2. Quick mini review of it after using it. For ABS it works amazing, prints are stuck to it do not warp( much if at a ll ) and are hard to get off, but not impossible. For PLA, lol way too sticky. I had to remove my replicator2's bed( its modded with bottleworks heated bed and glass plate ) and jam the paint scraper under my print and then slam the handle of my paint scraper into my desk over and over and over. The print would not release from the build tak until every portion of it had the scraper go under it. Even the last little bit was holding it on there for dear life. Tried removing pla from it hot and cold without much diffrence. Smaller prints seemed to fair better and I could just whack them good once with the scraper and they would go flying off. Eventually i tried leveling my print bed with 2 buisness cards instead of a sheet of paper. Funny thing was the print still stuck. though the first layer looked terrible because the print lines were not touching at all. I still need to try PLA on it with No heat at all on the bed. I was running 55C bed heat.. maybe with no heat they wont be fused to it. I really like the stuff but i removed it from one of my printers for now until i figure out how to get PLA to not be fused to it.