Too bad your link is off-line.
But based on the pictures at
http://web.archive.org/web/20190130200119/https://www.chicksinbowls.com, they try dangerous things. Maybe you want more padding and protection than on ice, like a hockey player?
I'm thinking about roller skating again on sidewalks because the roads where I live are so dangerous to drive on, and it's faster than walking. Too many crazy people doing crazy things on the road. (Of course, skate parks have people doing crazy things too.)
Quad skates, even more than ice hockey skates, require better forwards/backwards balance than ice figure skates.
The inlines I tried were easier - but, like Bill_S said, turning is harder.
On quads or roller, stopping fast is a LOT harder than on ice - you jump into the stop. On sidewalks or roads, you should learn to stop fast, for safety. On roads, even if they aren't very busy, you may want to learn to stop against an oncoming car without killing yourself - though I was taught that by a crazy racer, who went places he shouldn't have, faster than he should have. Curbs can be a problem you want to learn to deal with too. And you really, really want to learn to fall gently.
"Artistic roller skating", also called "roller figure skating", or just "figure skating", somewhat resembles ice figure skating, but I never got good enough to really do it.
Are there roller rinks where you live? Some even teach dance patterns similar to ice dance, and the staff lead various games. The ones nearest me seem like they are run by a fun-loving crowd, and are cheaper than ice rinks. Roller coaches were cheaper than ice coaches, too, though they are trying really hard to get the sport into the Olympics, partly so they can charge more.
Maybe I should start again. Thanks for the idea.
But personally I'll stay away from skate parks.