2024 Update:

• No online or paper immigration or medical forms. Just present passports on arrival. Sweet!
• No waiting for arrival immigration on weekday afternoons, but very much a YMMV depending on when your plane lands.
• Fill out paper customs form before you arrive. Customs line was 5-10 min. Still push button red/green nonsense.
• Beware! Bar outside T2 arrivals has no posted prices and charges $10 per beer and $20 per mixed drink. No kidding!
• No online forms or QR codes for departures anymore. Sweet!
• If you have no bags to check and can get a boarding pass through your app you do not need to wait in line in the lobby. Just go straight to security.
• The T2 priority pass lounge is overwhelmed at peak times. We saw a line of 30-35 people on a Sunday morning. Not worth your time unless you have hours to kill.
• Beware! SJD still has random gate security checks - you may be randomly selected right before the jetway. To avoid selection, put all liquids inside your carry-on item (they WILL confiscate water etc purchased in terminal) and don't be the first in line. You want to scan your pass while they are busy riffling through another suitcase.

Did I miss anything?

If you have no luggage to check and can get your boarding pass thru the app, I would say 2 hours is plenty of time to clear security and get to the gate without any stress. You could even cut it closer. The security lines are not long.