175% earth mass mite be bearable after you adjust and build more muscle to handle the weight. You would not be able to run that fast and you would probably end up becoming short and stocky bacause of the weight. 550% earth mass on the other hand i think that is to much g forces to deal with. You would weigh 5.5 times what you do on earth. As for 1% of earths gravity im not so sure about that idea either. Your mucles would get weaker with out the need for them to work as much and your bones would become thinner. Just like you hear about with past prolonged space missions on places like the Mir space station. Also trying to goto the Loo in such low gravity enviroments doesn't sound fun either.
As with imaging other planets its something i used to do when I was a kid. More recently I try and imagen other types of thoughts or intellegences. Even trying to understand every differen't view point of humans is enough of a challenge for me.
Other planets will become much more interesting when we have some way to actually travel there. Like some sort of hyperspace technology or something.
I hope some thing like that may develop within my life time. Probably not but it would be cool if it did.