Had this for 4 mos now. It's been great so far. We have used the air fry feature a few times and it works very well. Installer rejetted it for propane .
Only concern , there should be an illuminated icon on the dash to show a burner us turned on. 
Our mistake, but we left the right rear simmer burner on low (cooking rice) and forgot to turn it off . The flame is very low and we didn't notice for about 15 minutes.