As always - excellent workmanship. That has become my expectation when I buy any item by AP. The design is also up to the AP standard, meaning it too is superior. Its the simple things, like the ability to easily remove the mirror to keep it clean. Ive used and owned many diagonals.....and this is my second Maxbright - and the AP MaxBright is clearly my favorite! Its unclear to me how anyone could rate it other than a ten.