Attachment Mechanism - Work In Progress

I'm working on something new and could use your feedback!

This is a simplified 1 hr print of a special attachment mechanism important to the function of a new toy I am developing. The idea is a starting point for my 3d model, so I can develop the rest of it while I figure out the right tolerances for these pieces. From my experience, clips and sliding parts can produce very different results when people print my designs. If you have time to print a useless doodad I would appreciate some feedback in order to get more consistent print results from various printers.

What I'm looking for in this mechanism:
does the ring turn freely and effortlessly, as in the video, without needing to grip too hard?
does the ring fit tightly enough on the base to stay fairly secure?
does the insert fit into the ring relatively easily? does it stay secure when the ring is locked? although a little play is not really a problem.

If people are actually interested in helping I might save out a few