There's little to no point in getting cash in the first place. I did numerous trips to Nordics (SE, DK, N, FI, Iceland) in last couple of year without having any local currency at all (and I love it!). With Sweden being close-to-cashless society and hotels usually handling larger sums of money, I can't imagine many people would want to pay cash, making accepting it very inefficient. In a similar way, you can find many cashless restaurants, bars, museums or even shops in Sweden. It's not a Radisson thing, it's a Swedish thing - and after all, travel always involve certain level of adjustment to local customs.

I also stayed in this property last week. I can't say I really liked the property, room was old and elite recognition little-to-none, but on the other hand, I don't have any major complaint. It's just very average forgettable hotel in an excellent location. I might stay again next time I'm in Stockholm because of the location (and good rates) but I'm inclined to give a try to Waterfront first.