Got to see it in person. It was pretty cool!

Amazing how long the sound takes to reach you. ~35 seconds. Rocket is well off the pad visually before you hear the engines throttle up to full.

Makes for a surprise when you see the boosters landing... then later get the sonic boom cracks.

The sonic boom crack is really cool. I didn’t realize it goes trans-sonic at such low altitude but it makes sense given how much thrust the F9 has and the low weight of the empty booster.