I find these very useful and they have improved my sound in certain venues. The speakers can be raised above the crowd and then tilted as much as 15 degrees to reduce ceiling reflections and increase the quality of the sound reaching the audience. The design is simple, but very elegant and effective. I've had these for 4 months and I've had no fundamental problems. However, the little plastic ring that indicates the degree of tilt fell off one of them. It's not a huge problem, but it shouldn't really happen. I would highly recommend this product to gigging musicians who have to set up their own PA.
