On the plus side, it runs Linux. On the minus side, it is made by Sony. Sony doesn't have a good track record with support for Linux products. Sony hates Open Source, except when they're using it.
I've played with one. The hardware is physically sound. It feels and looks durable. The one that passed through our store came back briefly for product support with a newbie wifi configuration question. It had been clearly dropped from a significant height. Other than the divot missing from one corner, it was not damaged. Nothing was knocked loose. So hardware very good.
If it weren't Sony (and I didn't work in a resale store, where I can get stuff like this cheaper than the customers), I would buy one.