Thanks all for the advice - I think the Scandic's the way to go.
We were offered a good rate at the Renaissance too - €139 for two nights incl. Breakfast, welcome drinks and tour of a brewery, but it's the hassle of having to get a taxi or tram to/from the station (a total of 4 times...)
I know this is quite subjective, but 10k on the HH awards doesn't sound too good to me given that would be without breakfast, so only worth around €70. Will save the few HH points I have for when I need a mid-week stay I think.
Cheers
Tony