The girlfriend and I quite enjoyed the flick and I'll echo what many have said regarding the measured introduction of the monsters into the scenes. One of the movie's best characteristics in my mind is that it didn't spend too much time on any one segment, particularly toward the end. The viewer never has to spend too much time with either the Admiral/military, Ford on his mission, the monsters, Ford in corny scenes with his family, etc. Keeps everything somewhat fresh, and the limited number of monster viewings keeps them intense, and makes you look forward to them.
I loved the visuals on Godzilla, who was given just enough of a slightly "human" element to allow you to identify with the big misunderstood oaf. I also thought the movie's sound was excellent, particularly in a theatre environment. That bass heavy "sonic boom" effect worked perfectly to build and maintain the tension as the monsters were introduced.