Justin Aldridge of Eye on Spain (who is a British expat living in Spain) gives a full run-down of all the issues that were dealt with on the recent ITV series - Paradise Lost.
Essentially the programmes outline how a selection of Brittish expats have managed with investments, homes and businesses in Spain. If you are feeling a little squeamish then it might be best you didn't read it, but if you are considering moving to Spain for any reason, it should be considered at least.
It's not for the faint-hearted, but then the time for the reality check is before you consider such a huge investment or move, not when you've already taken the first steps.
Enjoy, you'll find the piece here.