What is the issue with popcorn ceilings? Is it strictly a matter of personal taste, or is there a problem associated with popcorn ceilings? I don't spend much time looking at the ceilings. It makes no difference to me one way or the other, so I wonder if I'm missing something. Thanks!

This is GREAT info! I am very interested because my whole house has popcorn and my father's CYV is entirely popcorn and I want to get rid of it. I'd like to do it myself. It sounds like you found a solution. Did you just do one room? Trying to get an idea of how much labour and time for a whole house.

Don't forget the #1 reason ceilings are pop corn when they tape the joints and screws they use only 2 coats of mud a good tape job has min of 3
Pop corn covers a lot of short cuts .You may need to apply a finish coat if your plans are to have smooth ceiling

Update and photos of ceiling
 

I did the entire home, process was very messy but well worth it.

I am no expert, though I play one on TV. I think it is simply a matter of taste and changing norms. In the sixties popcorn ceilings were very hip, but like paneling, linoleum, avocado appliances, pink bathroom fixtures, Formica, etc. it is not considered “in style” today. Thanks to DIY and HGTV, everyone wants the open concept, with granite or quartz, stainless appliances, and room for a pool. The popcorn ceiling will not make your life better or worse unless the eye rolls of your guests bother you.

I sure wants been around will come back around.

I agree, who steers at the ceilings, other than in the bed room. I had water spots for gigantic hail storm. After I put on metal roof ( in Okieland you want metal roof ) I just repainted it. Done.