Where is the save location?

I think I have this wishlisted for over a year already, but it just never came out when is this ACTUALLY going to be out of early access? I don't buy early access game as I don't want incomplete experience.

The game is fun and all but the most annoying thing is that some enemies and boss that can fly are either too high up too hit are rarely stay on the ground to hit. Feels like we need a options to shoot up or re-balance cause this gets really annoying when they are all over the place or we cant jump high enough to hi them....

How could I use Heart Scepter and Maestro's Wand properly? I can't understand their description. By the way I want to report 2 bugs. The interact key can not be set by myself when I changed my key setting. I have to delete the game's Registry to get things back to normal. The second one is about the element burst. Summoned creature with Element below Lv.3 will be stuck when I use element burst....

I don't know how this bug came about. After entering the game, the left button does not work (in the map interface and characters), but it does work properly in the menu.