Super awesome instructions, As always easy to follow, swapped out he drive pretty quick. makes me miss the magnets for sure.

How does it perform?

I do this daily. Adding drives, removing drives upper and lower. The fastest way is to disconnected everything first then do not remove the logic board. only for the lower drive for the upper drive you will have to remove the logic board. I have build several minis for clients with a 2 TB upped drive and a 500GB SSD for the lower its tight but it works great.

I think it depends, I have seen some that are very difficult to open and some super easy. But I see them everyday. I wish there was a tool that fit in the holes.