I certainly find that Florida one very confusing, but then it is unlike any ballot paper I have seen in the UK, so maybe if I was used to US ballot papers it would have been clearer. That staggered layout seems guaranteed to cause confusion.

I keep hearing that people are standing in line for hours in the US to vote. Is this really true ? Is this normal ? Does this happen in all areas or maybe just in poor areas ?

I can't remember ever having to wait more than 20 minutes to vote in the UK. If you had to wait for hours I imagine the UK turnout would be even more appallingly low than it already is.