This is a conference-floor pass, not a full-conference ticket — meaning keynotes and expo hall are likely in, breakout workshops may require an upgrade. The promo code comes via Meetup's event network, so it's a legit free tier, not a bait-and-switch. South SF is a straight shot on Caltrain from 4th & King (South San Francisco station), which is worth knowing because parking around the convention-adjacent hotels down there is slow on a weekday morning.

If you have two hours: hit the expo floor first — that's where the free swag, live demos, and vendor reps with actual answers live — then catch whichever keynote closes the morning block before the lunch crowd backs up the badge lines.