Saw the first one in a hotel room on a business trip, lol. It was worth watching, but a little lame on acting and concepts I thought--a combo between Godzilla and some Japanese anime concept or something....not in a big hurry to watch another one. However, I do agree with some above comments--good action, a good popcorn flick, etc.
Why didn't they just park some Navy destroyers by the entrance and use rail guns or big missles, lol? Nope, gotta use giant robots warz! Lol, I loved how no matter how far the robots walked out into the ocean, they were never above their waist in water, usually their knees, hehe. They would puff their chests out and shoot missles from their pecs! Why not use missles from a ship or submarine?