Printed very well, but did bit work well with my PTFE. My exit tube wore out last week and I replaced it with soke spare tubing I had lying around with a 3mm internal diameter. The problem is that the tubing is too weak so where it exits this guide it tends to kink and bend really bad. I had to secure the guide down and pull the tube out early to get it into a decent curve. It sorta works, but is more of a hack than anything. I have proper PTFE.coming from Bambu this week to fix it up right.