I never realized how annoying it was to install drives until I got an Inwin case some years ago that had drive rails. "Cooool," I thought.
Still had to screw the rails to the drive but that was much faster than removing the drive cage and attaching the drive to the cage.
Then a couple years later I got another Inwin case with drive rails but this time the rails didn't need to be screwed in. They had little
"nubs" where the screw holes were normally. All you have to do is slap the two rails on the drive and slide it into the cage. No screws.
Maybe these rails were simply defective but whatever the case, they rock.