Was staying in Gressoney, so got the ski bus down. It's a small area, one slow 2 man chair, and several pistes, probably enough for a morning's skiing, which is what we did. Pistes are mainly through the trees, with the blue surprisingly long. The floodlit black is quite tricky if conditions aren't great, i.e icy. The resort is probably better with fresh snow as there's some good off-piste between the trees when conditions allow. But if conditions are that good, you might as well stay in Gressoney/Alagna and go off-piste there. It's really only worth going if you're a Gressoney regular and curious. But your curiosity will be sated after just a few hours.