This is the new strongest kratom on the market, but there is a trade off. The effects are stronger and more intense but don't last as long. I guess its like a like adding all the fuel to the fire in 1 hit. It burns hot - very hot but goes out sooner. Maeng Da kratom effects begin after 20 minutes and only last 2-3 hours. Many also say its speedy, which means energetic rather than heavy and sedating.
For mild effects: 2 grams
For medium effects: 4-5 grams
For strong effects: 8 - 10 grams
Very strong would be 10 grams +