I had one of those Viking’s – they’re a ‘Citi-fix’ model and available on ebay for around £160 including postage.
For the price, they are excellent. I rode to work on it for nearly 6 months (13 miles each way, 2-3 times a week) and it was fine. Yes, the frame is hi-tensile steel but that’s not as bad as everyone makes out for road riding. Aside from that its all serviceable stuff. The hubs are better sealed than my Trek SS, the brake calipers are unbranded Tektro style dual pivots, it has chain tugs so there’s no slipping nuts, and the riding position is fairly stretched for good riding position when you need to wrestle it up a hill.
They are good simple serviceable bicycle and would be ideal for a 3 mile commute, assuming its not too hilly and the rider has a basic level of fitness.