Been using these for years and I simply cannot live without them! Oh, how many times have I taken a set of sockets under the car just so I know I'll have the right one when I get there?!? Ever try doing that with loose sockets? When I'm done, they go right back up on the wall to be ready the next time!
The metal socket clips don't move smoothly back and forth on the metal rails. They take a little more time to put the sockets back. They don't keep the sockets in place 100% because the clips are not square drive lugs, and they're out of shape easliy. I think I will need to buy new metal clips from time to time. This means that the cost will be much more in the long run, compared to the plastic version. If I could go back, I would get the plastic socket racks with plastic studs.
I've been needing these for a very long time. Got all my sockets lined up in order by size. Makes it a whole lot easier to find what I need instead of trying to guess every time I pick one up.