I think this is a pretty good product because its an easy way to show your'e creative and a lego fan. But i think the product is a little bit overpriced, That's because there are not a lot of pieces in the accessory bag. Although there are some fun unicorn and some cool night-sky printed tiles included, this is a tad expensive.
The armband itself opens en closes really nice and easy. The tiles 'stick' really good to the rubber band and won’t fall off easily.
Overall i think this is a good product but a little on the expensive side.