The big jam box is an incredible piece of technology. I bought this device as soon as it came out and I was impressed right from the start how good the sound quality is for its size. It gets really loud, louder that how I like it, however for the test it was really loud and really clear. The bases great and it to you can really hear it.
Connectivity is okay. I can connect my iPhone and iPad just fine but if I have both connected to each other they fight for connection. I don't think that's an issue with the jam box, however the connectivity is solid. If you're looking for a portable speaker system with big sound look no further than the big jam box.