It makes your work easier, faster, and better. It's the best, if you shot for the best you should be using it. The average professional painter rolls 200-400 hours a year. You will be making fewer rolling passes across the same surface, and you won't have to stop and mess with the roller cover sliding off, or it coming loose from the pole. You will be working less and getting more done.
Quality never is.
Just consider how many gallons you are going to roll with this frame, or how much aggravation you want to endure, then consider the true value of this tool. At least you have a choice now.