It looks pretty cool! However, with someone who is not very versed in Donkey Kong Country, what is so different about Tropical Freeze compared to DKC1-3?
Its really hard to say this without playing them side by side because the gameplay is basically the same. I find the OG DKC games felt more serious and I guess you could say a little more darker. It was the mixture of the darker and serious nature of the games complied with some of the best music in the industry. The new games felt more colourful and lighter in the mood and less serious all around. More like a joy ride and tribute than an actual serious game.
A good example would be Zelda Ocarina of Time to Windwaker.
That's just what I felt when playing them all.