Just like the mobile version. My only complaint is the UI doesn't scale very well on PC, but it's not so bad that it detracts from the gameplay.

IDW

This is my favorite gacha game. I've played since it originally came to US on mobile and I come back every 6 months or so to tackle new content and grab skins. You can do SO MUCH without paying. You can get nearly every doll in the game WITHOUT PAYING REAL MONEY. The strategy game is interesting and the echelon building is intuitive. During combat it pays to pay attention and not auto-battle all the time. Basically any waifu/ daughterfu/ gunfu you grow attached to can be made useful or at the very least will have a spot somewhere in your roster where they are actively helping you.
Play the gunwaifu game!