If you're primary interest is in running Line 6's Mobile POD app, then this accessory is fine. Otherwise be warned that, despite the CoreAudio designation, this accessory has compatibility problems (i.e. it's presence is not acknowledged) with most other CoreAudio apps I've tested. It's up in the air at present as to whether this is Line 6's issue or Apple's issue. (Some reports indicate it is specific to iOS 5.) In either case, the product is largely unusable until one or the other takes the initiative and fixes the problem. So... sound quality is excellent; as advertised it is a HUGE improvement over any accessory that plugs into the headphone jack. Ease of use: well it's dead simple to plug it in, but then it may or may not work, so sort of a loaded question. Features: limited support for 3rd party apps = not good. Quality: I am really unimpressed with the physical design - the way it sits off-center on the iPhone, and the way it feels like it might detach (or even damage the IO port) in a stong breeze. Wow factor? Hmm, well I guess I did really want it before I tried it. :/ As for mfr support, here is a point of concern. Line 6 was always an excellent company in this regard, but I feel they are beginning to diversify too much, and it has taken its toll on their customer support. Their reps simply don't understand their own product line anymore, and realistically, how could they? I've read Line 6 reps posting misinformation about Bluetooth compatibiltity online,… read more and more importantly I infer that Line 6 hasn't quite gotten this product working with iOS 5. In summary: If you want to Mobile POD, buy this. Otherwise, test first and be wary of OS updates.

Musical Background:
Hobbyist, many years

Musical Style:
Rock, and a little of everyhing else. read less