I had a new system installed in 2018. Or 17, CRS. No matter.
I was advised to stick with the simpler system with a lower SEER rating because all the extra controls in higher SEER rated systems can be troublesome and expensive to deal with when they fail. I believe in SIMPLE.
Another thing I learned is that most of the guts that actually do the work come from the same manufacturers---things like condensers, compressors, etc.
IMO, the quality of the installation is more important than the brand stickers on the equipment.
YMMV.
