Trying brand name for the first time in a week. What to expect.

Hello,

I have been on vyvanse for about 5 months starting at 20mg and working up to 50mg. I have been on two main generics. Solco and apotex. Apotex being the more efficient of the two.

What would brand name be like? I'm excited honestly for the consistency I keep hearing about it. And yes I know everyone has their own subjective experience regarding it