The reasons: built-in battery. This allows you, the device sometimes even to take in the garden.
Built FMRadio with rod antenna. This is still the fastest way to hear music.
Bluetooth - Coupling with Ipad Air worked right away. Also the sound quality is io There are no dropouts within 6m (further I have not tried it yet, the room is not just bigger)
The dock with Lightning connector also summarizes problems including an iphone leather case.
The issue was but the sound. For 250, - the sound is great. Very balanced with good size for the bass, which are beautifully crisp and not nervous.
The remote has a somewhat limited range and the IOS App D-Sappli (free on the App Sore) is very rudimentary.
but that's about it at minus points.
Otherwise, the money is considered Pries is top!