I've used the 3000 series for several years in a prolific music theatre. These are good packs for their price, and the handhelds are okay when they are handled with care. With the D band becoming unavailable we were planning on purchasing more of these models in the I and C bands. I am disappointed with Audio Technica for continuing to post this item with it's price when it is clearly no longer being manufactured for purchase. We are also upset that the only reasonable alternative, the 4th generation, has an different cable connector. If we went with the 4th generation we would have to purchase an entire set of new lavs plus spares. Which means it is just about as cost effective to switch to a higher quality brand rather then deal with these new problems. Over this period of time the packs and receivers did admirably in a stressful environment. The most common faults have been batteries falling out, and the occasional antenna snapped off by improper actor handling. I would purchase again if made available.