Otherwise Bergen is extremely pleasant and safe town, except for one thing... Yes, the prices! What ever stories you have heard about the huge prices in Norway, they all are true ;)
Well, if you stay in Bergen you'll just get used to it, but for a visitor it might come as a surprise. How does more than 100 euros for a dinner for two in a "normal" (not particularly fancy) restaurant sound like?
Norway's cost of living is very, very high in comparison to most countries. Because I was on a tight budget, I didn't eat at any smart restaurants but even a burger and chips and one glass of red wine cost me about £20. On another occasion I did manage to get a nice meal in one of the larger hotels at a more reasonable cost so in retrospect, it might have been more prudent to pay a little more and stay at one of those on a half board basis. Bergen is renowned for excellent fish restaurants so it's a shame the prices were too high for me to sample them.
One tip... Bergen does have a McDonalds and it's probably the cutest I've seen anywhere in the world.
If you come to Norway, be prepared for a shock.
Everything and especially Alcohol is incredibly expensive especially anywhere where tourist's gather.
Beer is between 40 and 65 Nok (£3.50-£5.60)