The plate is made well, but FR4 is awful in this board.
This board comes stock with a steel plate, which felt a bit too harsh to me and could sound really harsh too. I never really gave FR4 a real try, so I was excited to see plates drop. I am sad to say that at least in this board, FR4 makes it the most boring, dull, flat, uninspiring sounding board I have ever heard. Its not silent, but there is zero character no matter what config I try. I recommend a different plate if you want something other than steel, but don't bother with FR4. Very disappointing result.
The plate was great and had nice flex before installation in my v1, after that had no flex. This might be because of the tray mount design. Probably isn't worth the $15, I would stick to the stock steel plate.