I have compared this device as a Large battery bluetooth stereo hedset mainly for work calls and few music. From this point of view, the ear tips could be upgraded to provide better noise isolation (similarly to beats x).
From the Active Noise Cancelation, there is a lot to improve, compared to a Bose QC30 or QC30, but ANC was not the main reason I bought them, although it made them a bit more expensive.
It has nice features such as magnetic ear pieces that work to pause music or to answer/reject calls as well as keeping the ear pieces under control while not in use.
Is nice to have an equalizer in the Jabra app to customize the audio settings.
If you are more interested in a device for Taking phone calls with good audio quality for your own voice and long lasting battery, is a great option... noise isolation is not so good.