Especially their boosters landing back on the ground to be reused. Here’s a 30 second video of a recent Starlink launch that had two Falcon Heavy boosters. They land almost simultaneously.
https://www.youtube.com/watch?v=fbbSCqaeWyA
spacex rocks
I missed that launch (and landings) “live”, but DID get to see the string of 60 Starlink satellites go by a few days later. Very “cool”!