My ex-wife has a Guiilia, May 2017. On her third day, she had an accident and had to wait three months for parts. Those supply chain issues should be fixed by now. She has had no problems wit the car, none. Some cars had software issues documented elsewhere, but I don't find that surprising for a brand new platform. That stuff seems to have been sorted as well.
For comparison, I have a 2011 Jaguar XJL, 83,000 miles now. 5.0 supercharged RWD with a perfect 6-speed ZF auto tranny that suits the car. I like the calibrations better than the 8 speed. Beautiful car. Requires super expensive brakes every 30k, eats expensive tires, have had steering rack, AC compressor, and water pump under CPO and extended warranties. Big glass roof always getting adjusted (a true design flaw). Now up for full replacement of front end bushings and ball joints that have been eaten up by bad NE roads, also under extended warranty. I love this car. It's a major league driving machine. Buy the warranties and stay ahead of maintenance. Getting the "lifetime" tranny fluid replaced now, and supercharger serviced; should have done that earlier.
My friends who drive Audis, BMW, Mercedes do no better. When the Jaguar F-Pace was launched, all kinds of problems including poorly designed rear suspension bushings that were all being replaced. I am not slamming Jaguar, just noting that all new cars platforms have post-launch issues. I too am tired of Alfa getting slammed, and it is only a matter of time before I buy a newer or brand new Alfa.
By the way, when folks talk about older Alfas and rust, 164s seem to hold up very well except for a couple of known trouble spots. And I cant find any old European cars, or Japanese cars, except maybe a Saab or a Porsche (after the bodies were fully galvanized) that isn't a rust bucket unless driven and stored, or restored, carefully.
So tired of this topic, but happy to encourage new owners.
'82 gtv6 3.0, '86 gtv6 3.0, '18 Stelvio TI