Espresso Knock box

I am new to 3D printing. I tried to search for a similar design on Thingiverse but couldn't find anything, so I figured I'd try to design one for myself. After a bit of testing and modifications, this is what I came up with. It is plenty solid and takes around 10-11 hours to print. I used standard PLA filament since that's what I have, but guessing PETG might be even better.