This is by far the best plate I have used in over 3.5 years of printing. I print primarily PETG at around 20-30kg per month and 99% is PETG on Bambu P1P/P1S printers. Their Engineering plate/Hi Temp Smooth were what I mainly used prior, but I gave these a try and WOW! Huge difference. All mentioned plates held with rare failures, never any nonsense glues or sprays, always bare and clean plates. The biggest difference however is the hold. Once that first layer is down, the prints are staying stuck until it cools a bit. I run em around 66c +/- 2c and I've yet to have anything break loose during a print. Minimal to zero warpage, and when I do, it's always my fault as I have a window nearby I forget to close, otherwise these things just hang onto prints for dear life. Once they cool down to around 48c, it takes minimal effort to remove a print, usually a flex and it pops off. If let cool completely, they release on their own, no effort needed. Keep in mind, my prints are typically around 40% - 85% bed coverage, not small items. These will be the main workhorse plate in my arsenal. I give em a spray with 99% IPA and a wipe with a microfiber towel, that's all. No soap, no glue, no water, no nonsense.