I usually did okay, but did often have to have folks back-save to older versions of Illustrator. My newer CorelDRAW seem to open them just fine, but I do the opposite and save as pdf when creating in Corel and sending out.
My issue with that though has always been that it ungroups things I put together for a reason.

I know some people on here run Corel, and Corel for me has always struggled with AI files.  I learned a trick not too long ago that works very well.  Change the extension of the .ai file to .pdf and it'll import into corel with zero issues.  It's also lets you preview the file in the folder as well.

Some outdoor fun 

a long time ago we had an employee that made a "tree" out of the screen tape after it was removed from the screens.  he also used some popped mesh to wrap around the tape tree like garland...  when christmas time came it was about 5 feet tall...  there might have been more decorations, but it was 20 years ago and i dont remember every detail.

I have 9x boxes of these (567,000 labels!) for sale - dirt cheap, $150 plus shipping.  These are going to be tossed if no interest within a month or so.

Promach ID Technology brand, 3x1", 14" OD rolls, non perf backing, thermal transfer.  For large industrial labelers, we use Satos.  We moved to a larger label and so I need to get rid of these.

Let me know if interested at all!