I used to be a snowboarding instructor (I don't ski though). I'd say you can quickly be able to go on all kind of slopes. Beginner/intermediate skiers tend to have a harder time in powder or steep slopes. However, snowboarding beginners tend to fall much more often, the first days can be very tiring. I'd recommend avoiding learning on hard snow. If you can, make sure you you go in the mountain when the snow is fresh. And much much better to have an instructor.