What is there to say about a mains charger? Well - it works for one thing, which is more than a cheap alternative I purchased did! It's quite a bulky unit in comparison to the device it's charging and should have been included with the Walkman in the first place. That said, the stubby USB cable fits the box and does the job. The fact that it's short doesn't seem a problem to me. I'm pleased to see that the mains cable has the same connection to the charger as the ones used by the chargers for my camera batteries, so only one mains lead to take on holiday.
I can't fault it so it has the 5 star rating from me.