Whichever side of this debate you are on, there are going to be pros and cons. The problem is that there is a lack of hard evidence upon which to base a decision. The key factor is likely to be the economy but nobody can quantify the cost/benefit of being in the EU compared to the cost/benefit of being out of it. Numbers get thrown around but everyone has a different number and one which usually fits their agenda.The problem in the UK is that most people only want the EU for the economic benefits. They don't want the Euro or Schengen (hence the opt-outs), they don't want 'ever closer union', they are ambivalent on free movement of people, they are concerned about the democratic deficit associated with the EC and the ECJ and they don't really want to give up any more sovereignty. So it is really a question of whether the economic benefits outweigh the other stuff.Whichever way the UK votes, the EU needs some serious reform if it is going to be fit for purpose over the next 50 years. It is essentially a 1950s and 1960s solution to a 1930s and 1940s problem. It has grown too fast, has become too intrusive and all this without introducing any real democracy. It largely run by appointed officials who lack any democratic oversight or accountability. Right now this suits Germany, France and Benelux because, to a large extent, the EU is run for their benefit. That is unsustainable in the longer term. However, it is going to take an existential threat to force the EU to change. And the imminence of a Brexit might just be the threat it needs.