No real issues yet, but that was for travel Oct- Dec.
Different airports have different levels of checks. Some don’t bother whilst others take your fingerprints AND want your to go through yet another electronic gate followed by the old manual stamp. That was Alicante and they had loads of terminals.
I get the impression that once they’ve collected your data it’s a lot easier. For example, the assistant wanted me to use the electronic system on exit from Barcelona but once I’d stuck my passport in, it said “complete” and I was straight through.