Two advantages were that yes, it might've been really fun to float around weightless and see how liquids form into a ball. Another could also be that you wouldn't have to push or pull heavy things without gravity.
Although, there are some disadvantages. One is that your bones can become very weak and thin overtime because of weightlessness, your bones and muscles wouldn't have to work so much, so they get weaker. Also, you may get sick, your stomach will hurt and you might get dizzy after a while. This is caused because there's no gravity; humans are only used to gravity which on earth.
Hope this helps!
