Sound quality is great, havent had any interference problems so far playing bars to restaurants, hotels, and larger venues. Other than that it?s funky. When I pulled it out of the box the shoes seemed SOO TINY! I have neuropathy and because of that, it?s really hard to find a shoe that?s comfortable. Ive been wearing this on and off for almost 2 weeks now and I love it. But also, this makes an excellent vertical bike stand if you are ok with leaning the bike up against a wall (see photos). The small form factor also makes it easy to put into just about any pocket or bag. Buying in other colors! This watch case is great, I looked for one for days, scouring review a free review. No missing parts and it can hold up to six pair of shoes per row.