I bought a 5 foot BL tree two years ago, so we have used it for two seasons, and not problem. I'm happy with the light and the variety of choices in bright/flicker/fade etc. and love the fullness of the tree.
What I do notice is that my next big tree, I want to have the dual lights, both white and colored, and the presentations I see, BL doesn't do this feature (or at least not on many of their trees yet). I see this as the way of the future, I mean why wouldn't you, if investing in a tree, want the option to have both, so you can use the tree in multiple ways at different times?
So I have to wonder if this year BL will do the dual trees and lots of them. Seems other companies are really on that bandwagon.