basically you get to choose how hard you want to work out, but at about 250w-500w boost, you will maintain about 130bpm, which will burn 400+ calories per hour. It's a pretty decent work out while still being quite pleasurable.
And you get a hill you don't like, you just use max assist and go up without sweating.
And you get a hill you don't like, you just use max assist and go up without sweating.