David C.
Yelp
Sunn restaurant has a delightful view over the cathedral and is is a perfect location to see some of the sights of Helsinki. In all honesty it is hard to quantify the price range in the simple survey, if you are tacking in the brunch option then look to spend 16-18€ per head, and if wanting to start your evening off with nice meal then you will be spending considerably more, starters in the evening range from 8-10€ and a main course can be 28€, and thats before you had a kossu to start you off. What ever your budget allows Sunn is a great choice either way. They make pretty much everthing in house and the quality shows.
Its friendly with great service, the only real down side is the flooring?? you'll understand when you go there ;-)
If your a tourist in the city hit sunn for a brunch and then enjoy, the city museum, a look at the presidential palace, the cathedral and the old market in the harbour, all are within 5 mins walk!