I mean some common adulterants are pleasurable, but just not to the extent that actual MDMA is. I'd choose the almost sedated euphoria rather than some wired crack concoction any day haha -- but that's just me.
Piperazines are God awful IMO. I only got piped 1 time and it was the worst experience of my life. The only adulterants I don't mind are speed and methylone. I don't mind me an amped up roll every now and again. And methylone can be quite enjoyable as long as its being sold as is and cheaper than MDMA. But, pipes.... FUUUCK THAT SHIT!
I usually don't mind speed mixed in with the mdma at a large party, nightclub, rave or similar event, but for small intimate nights with good friends, pure is better.
Loved the MDMA with speed more than molly when I was messing around. In fact if I ever get around to rolling again Im gonna purposely find the speed pills.