In a word, no.
Surfskates are great fun on flat and mellow hills, but unless you’ve got some serious skills, bravery, or both, then you’re not going to want to pick up too much speed.
Most small longboards or cruisers are totally happy rolling along in a straight line at 15mph or more, whereas surfskates can get twitchy at much above a steady jogging pace, and being higher off the ground are very hard to footbrake on.
If you’re looking to spend time carving hills, we’d recommend going for a longboard over a surfskate every time.