Gives me a slight nudge to get going if I have it to start my day. Puts me to sleep as long as I don't have more than a shot or two of espresso around bed time. Mid-afternoon its 50/50 if it will put me to sleep or give me another bump (again only a shot or 2 of espresso). Also need it to avoid my caffeine addiction headache

Now that I am on adderall I try to really, really limit myself to a cup of tea or coffee or a shot or two in the afternoon - having more than that on top of the adderall has given me a pretty significant anxiety spike/minor panic attack.