Primarily the graphics. Everything on Extremely High is awesome. Sex (the most important) didn't change much through the years (2013-2018), clothing and hair on the other side, got a lot of options........................... We have been asking for BDSM things for so long now. A buttplug tail, handcuffs, ballgag, pig mask, leashes. Nothing too alien. Even Elder Scrolls Skyrim have that. Perhaps a micro bikini ending with an anal hook?
For outsiders, the game will be amazing in the first few months, especially now that we don't have moderators stating where you can sex or not, but you will eventually turn off the music and get bored with the afker's dancing to silence. Some dances have nothing to do with the music being played LOL.