I'm voting out. I used to be a supporter of the EU and it could have been of great benefit to the citizens of Europe, however all it has turned out to be is the biggest taxpayer funded gravy train in human history. If that wasn't enough it is also unaccountable, anti democratic, uncompetitive and become so hamstrung by its own beaurocracy that getting anything agreed is next to impossible, it is mostly a talking shop. If that isn't enough it has turned Greece into a basket case of a country and initiated the largest refugee crisis in generations , by poking its nose in Ukraine and other territories traditionally under influence of the Russians it has pissed of Putin and caused tensions / civil war in that region. If that isn't enough youth unemployment is at record levels and it's currency union is deeply flawed and under normal circumstances unsustainable, if it wasn't for the political will of the mandarins in Brussels it would collapse.
Leaving would almost certainly create volatility in our economy for a period of time until we completed a managed exit and may even precipitate it's breakup but we would in my opinion be doing ourselves and our neighbours a huge favour in forcing a huge rethink of how we can move forward for the benefit of all the population of Europe and not just the privileged few.