Excellent - we've printed 125 so far for local medical professionals. We've used 2 Creality Ender 3's, a Creality CR-10, a Taz 6 and a MakerBot Replicator 5th gen. Worked well on all printers. Design is great, solid, and comfortable.
Feedback:
Keep doing what you're doing - this design is awesome and functional!
