Here's my opinion on the different items:
-Carrying case: It's good, console fits in and there's space for some extra items.
-Screen protector: it's good, easy to install (it.d be good if it included a cleaning swab/dust remover)
-Joystick covers: they fit fine, to install them first turn them over, put it on top of the stick, and unfold them
-Console plastic case: If you put it on, the Nintendo barely can't be placed into the dock and it gets hot
-Joycon plastic case: One of them was a bit scratched (manufacturing defect), and the plastic that holds the two pieces is very small and feels very fragile