I think the best page you can read is this: https://erowid.org/chemicals/mdma/mdma.shtml
- it lasts a couple of hours
- tends to cause powerful feelings of openness, empathy and disinhibition
- head rushes, bruxism
- higher doses tend to cause uncontrollable body movements, strong rushes and sometimes hallucinations (generally quite pleasurable and friendly)
- dose is usually about 100-130mg for a low-moderate dose