Each to their own when it comes to sticks and rods etc. but having bought these a few times, I'm not sure I would again. The big plus is they last far longer than usual rods due to the plastic casing, and can be used for heavy playing too without falling apart. Precise at the beginning.
But after a gig or two, I find they feel unnatural compared to normal wooden rod dowels, and soon enough the weight can become very uneven resulting in a heavier handle feeling when playing.
I also find that the tightening strips tend to move too freely by themselves up and down the stick especially if sweat is added in. Tape always seems to be needed to keep things in place. When the dowels and plastic are let out to create a brush-like fan, personally I find it just makes things even messier in terms of sound and control.
Nice idea for a longer lasting acoustic style stick, but needs more development.