Geberit you can always buy. The price / performance range of Geberit is simply unbeatable. The cover is indeed plastic, but on a very high-quality plastic, which is by no means standard for this price.
Not only the haptics but also the function is very satisfactory.
As a tip, I would to buy the chute for Reinigungswüfel, it also does not cost much but is really handy and always a laugh for visitors. Anyone who has otherwise blue water.