I used Bird, Lime, Lyft, and Jump scooters over the weekend in LA and they were great for getting around when I'd have otherwise considered driving (over a 45 minute walk). I tried a Skip scooter again when I got back to SF, and once again, it simply could not handle a minor (for SF) hill. I don't know what the solution is, since it seems like a bad idea to power them more to handle hills given the dangers that would pose on flat (or downhill) terrain, but I can't imagine them really taking hold in the same way in hilly cities.