I bought this product for an extended US train journey to avoid carrying four separate chargers for two non-compatible cell phones and two non-compatible e-readers. It worked great, seems sufficiently robust given careful use, and saved me a huge mess of plastic bricks and wires. My only real gripe is that the carrying pouch supplied is not big enough for all the parts. It's not easy to stuff everything in there, and you end up with a pretty awkward package. But the bits work, and the product's flexibility is great.