Scenes between Anakin and Padme do work as a couple, the young cast does click together as the film goes on but overall, it is hard to buy into it as an overall romance. Why would Padme fall in love with mr creepy whine whine pants? Anakin is clearly still a stroppy whiny teenager who has yet to mature, is that Padme falls for people who whine a lot about how life is sooooo unfair? Is it the creepy stares, the "I always dreamed of you", the inappropriate touching. Padme may be headstrong but it is hard to see why she would fall for Anakin.
Most of the film was 5 or 5.5 for me but it does really pick up near the end. Usually the action heavy stuff is where I get bored in films but the action was well done, there was a bit of tension, a limited dose of humour. Some big lightsaber duels. Those I found a whole lot more fun then the rest of the movie.