The game is meant to be hard. But not in a unfair way.
Yes, lots of levels have some seriously precise jumping required, but it never was really impossible. There were also no random traps/monsters that suddenly appeared out of nowhere, you could always see them and predict their movements.
So if you die a lot, which you should, it's always the players fault.
And yes, the levels are indeed sometimes very long, with one trap after the other, but that is part of the hardness. And after all, when you do the start right after a few tries, you usually get the hang of it, making those first jumps easier to do, so you can focus on the other traps.
I personally found it a very fun game, good level design, funny story and smooth controls.
So it appeals to me at least.