Unfortunately my experience with Superman was mixed with other ecstasy brand so I will just make some general remarks. I took it together with other people and we all shared the same experience so I think following statement should be valid.
Pill is quite strong and it hits pretty sudden. Peak is not very energetic, you just want to lay down and enjoy it. Music sounds great but there is no desire to dance, although one may say peak is so strong you can't even stand up :) We all experienced double vision, and our jaws were clenching. One of friends experienced entire body trembles, and her jaw was
shivering pretty wildly. Other then that she looked like she was having the time of her life :)
I would suggest non experienced user to start with a half.
Pillreports is a global database of Ecstasy" pills based on both subjective user reports and scientific analysis. "Ecstasy" is traditionally the name for MDMA based pills, however here we also include closely related substances such as MDA, MDEA, MBDB. Pills sold as "Ecstasy" often include other, potentially more dangerous, substances such as methamphetamine, ketamine and PMA.