The mobile key on my IPhone12 works great in the garage (WiFi ) especially when I do not need the doors unlocked
. I know we have the passive unlock but that is another story.
When out and about it has a mind of its own but I power through it. It is my go to and only option 98% of the time. I do keep the key in the pouch with me for emergencies.
Biggest concern is forgetting the phone in the car because then the car does not lock. Thankfully it only happened once and I was only gone a few minutes.