It won't hurt, that's for sure. You learn all kinds of aerodynamics and I've found it to be almost harder to land a fast model plane than a "real" 150 to be honest with you. You'll have quite a lot of knowledge in how to plan your approach, consider wind, and so forth.
But the motor skills are a little different.
The hardest thing for me to get used to when flying a helicopter is to control the tailrotor with my fingers instead with my legs.
Why are you asking?
Thinking of buying a new model and trying to justify the purchase?