I used to work in flight test, and I got to take the slide one time after some emergency exit testing. They are very fun and quite fast in order to get everyone out of the plane quickly. Fun facts about emergency exit slides: they use specialized gasses and packing methods for quick inflation and to fit in the tiniest amount of space possible, so they cost about $70,000 a pop. Also, the end of the slide has a pad that adds extra friction and pops you up onto your feet to keep your momentum even after you exit the slide.

All in all, a 10/10 experience that I would happily do again, provided I was in a non-emergency situation.