Godzilla destroys a lot of stuff, the government tries various strategies to deal wiith Godzilla, but it is actually the maverick scientist and his perky assistants that come up with the solution, etc. etc. True, the suit they used is higher tech than any Godzilla suit up to this point, and a number of mechanical substitutes were used, one of which was 17 feet tall. But even with all this effort put into the special effects, Godzilla still doesn't look realistic. It has really weak sholders, and the head looks too large. Worse yet, someone thought it would be a good idea to make the eyes large and white.
Nothing ruins the illusion of a special effects monster faster than fake-looking eyes.
However, the most important thing about this movie was that it made a reasonable amount of money in Japan, and that fact led to the latter-day series of Godzilla movies, which started in 1989 with Godzilla vs Biollante and ended in 1994 with Godzilla vs Destroyah . Blah blah blah. Blah blah blah blah.