Honestly the only thing it has going for it is the art. Shiory is a talented artist, but his work can't carry the entire game by itself. The game is:
1.) Grindy. The majority of your playtime will be in a mine fighting goblins and golems, and you will need to farm levels off them to win later fights. This isn't a game based around battle fuck, so there won't really be anything to see while you're fighting either. The combat is basically just your standard, stock RPGM combat with some custom UI. It's not very fun or engaging.
2.) Forceful. You don't get to make choices at all. You can't resist during sex scenes, you can't complete quests while avoiding the sex scenes, and you can't even pick dialogue. You will get fucked and your character will like it. There is no option to maintain virginity.
3.) Tedious. The mine is huge, and your movement speed is slowed down while you're there, which is painful since you're not especially fast to begin with. Enemies move somewhat quickly, so you'll definitely get attacked a few times while navigating it. There's also dead ends that are multiple maps deep, so get ready to feel like you've wasted your time.
5.) Unoriginal. This game follows the "royal/wealthy young woman becomes afflicted with a lust curse/drug/spell and must seek a cure" trope. I've played at least a dozen other games with almost this game's exact same story, so it's not exactly riveting.
4.) Boring. All of these things combine to make a boring, stale experience. The combat is generic, the sex isn't engaging since it's on rails without any player input, the story is played out,and it just doesn't feel worth playing. I had more fun looking at the CG in the game's directory than I did actually playing it.
The actual "game" part of this porn game feels half done. I haven't seen Shiory advertising this game on a either his Patreon or Pixiv, so I assume he's been commissioned for this game and isn't actually developing it himself. I might just be cynical, but it feels like the developer put minimal time into actually making the game and hoped a few hundred dollars in commissions to a talented artist and a couple months in RPGM could turn into thousands through Steam.