I'd get a Matrix bro.
Lower priced blinds are just that for a reason, often times it is quality. Before I owned my DB, I swore up and down that they were a rip off and waste of money. I was humbled. They are the cadillac of blinds.
I never could find a material of lower priced blinds that would last. Often shiney, noisy, and it rips easier than printer paper. I went through 3-4 blinds before settling on my Matrix. Heck if I was smart right off the bat, I could have two matrixes right now.[:-]