As someone who has settled to bouncing one day from Elvanse 50mg to the next to Medikinet 60mg and in both cases at night ~8pm to 150mg of Bupropion to halt the crash of either and be able to sleep and wake up fine I've got to mention one thing.
It's the best of both worlds.
The body does NOT get used to either ever. It's the only way I've manage to NOT develop tolerance.
Every new day on Elvanse is a new day on bullet time, every day on Medikinet is a day of pure productivity.
Extra perk: it is a lot cheaper.