The NHS is brilliant within the UK. I think ill just mention a few issues however.
Firstly, it is in a large amount of debt that isn't going to go away anytime soon. It also has problems when in different parts of England. For example, a certain drug used to ease the effects of cancer was avalable free on the NHS in Yorkshire but in Lincolnshire the same drug cost money because they have to cut costs. This inequality proves that the NHS should have the same rules nationwide and not allow regional hospitals to set out rules.
In short, America needs healthcare reform. Taxes will shoot up but the safety netting and equality will mean a more prosperous healthy nation.