Its all relative, you can enjoy riding a 'cheap' road bike, but you can feel the difference when you get on a more expensive one.
I'm sure the Viking is fine at its price point...it's no good comparing it with a more expensive bike, that's pointless.
My first roadbike was a Raleigh Chimera, £280 about 15 years ago, heavy chro-mo frame, basic components, Sora, cheap wheels. I rode thousands of miles on that bike, the wheels rarely needed adjusting, never needed truing, it just went and went. A bit uncomfortable over distance and it didn't like poor road surfaces, lots of vibration.
Once I got an alloy Bianchi....I LOVED riding that even more, but my 40 mile circuit times hardly changed, but my riding experience did. Smoother, more comfortable, lighter....but not faster, not appreciably anyway.
Nowt wrong with cheap bikes...so long as its durable.