personally i LOVE the color quality of desaturated film. i use portra NC a lot--even for vacation pics. landscapes will be subtler, perhaps more realistic than ultra-saturated films. more meditative? definitely more painterly, which is something i like. fog rolling across green pastures or whatever.
it's definitely a subjective judgement, as someone mentioned above.
one way to abuse the film is to underexpose it so that it gets even more pastel-like and desaturated. i've wanted to play around with that, but never had a good idea of what to photograph that way, but i've seen somebody do it. shadows & the film edge will go green or brown or whatever, though.