I fell in love with my VP100 right out of the box. It gives you clear, detailed dialogue. End of story. If the 150 is the 100, but bigger and better it would rock. I can't tell you if this is true or not, since I've never heard the 150. What I do know is that the 100 sounds bigger than it looks. Judging from my experience with the 100, I don't think you can go wrong either way. As a friend of mine used to say, "It's all good."