Hey there!
I just so happen to Have ordered this build surface and let me tell you for printing with PLA it's tricky.
I cleaned the surface with 99,9% alchol which gave a lot of trouble making PLA stick.
Then I tried with a bit of water with ammonia and that made it work a lot better.
If I knew all this in advance I wouldn't have personally bought it because you know I want to print PLA not PA or nylon filaments.