The two games have different styles of gameplay, so it's entirely possible that you could like one without liking the other.
However I can't help feeling that if you didn't appreciate the first you will probably not get nearly so much out of the second as others have.
Both games very deliberately have very desolate environments. The designers are playing with feelings of isolation, loneliness and sadness. If experiencing that doesn't float your boat then fair enough, but it probably will make it a much more dull game.
For reference, other than fighting the 16 Colossi, more or less all you do in the game is run around a very empty environment on your horse. Even the battles are often a case of finding the one particular way of attacking the enemy and then repeating until it dies.
It might be fun on it's own but for me, a lot of the experience from both games came from the emotional involvement - a fairly unusual thing for a video game to do, certainly for it to do well, and maybe not everyone's cup of tea.