I've done Ecstasy at a party once. Hands down, it was the best experience of my life. I was supper happy, pretty much ecstatic (name!) and just danced and hugged people as if there was no tomorrow. I don't remember much of it though, but the trip was so great that it completely consumed my depression for the following week.
The comedown was very odd, it's difficult to describe. You are clear in your mind but you have no emotions, almost like a robot. And the desicions you make are odd, your priorities are odd. My desicionmaking led to me losing my virginity to a random person I've never met before lol. Not super proud of it but I don't regret any of it as it has changed a few "radical" points of view I had, different topic.
Summary: I can wholeheartedly recommend the trip, but the hangover is something that can be dangerous. It's best to have a person beside you that watches over you.