Claire's quest is a game with biazrro levels of production value, knocking many other RPGmaker games out of the park. It looks good, it has some hang ups in terms of playing and has pretty solid writing, even if the various NPCs can get pretty "Welcome to Corneia!" at times.
It is not a typical RPG game, though. While the character does have stats which determine various flags for scenes and scenarios, you aren't fighting goblins etc etc at all, it's more back and forth chatting. Little "meat" to the gameplay if that's a concern, but on the flipside it does mean everything happening is actually to a purpose instead of random trash mobs.
The English is good and actually well-worked on, which a lot more then could be said for many projects. The main issue I have with the game, personally, is that it's a lot of RAPE RAPE RAPE RAPE RAPE. If you're into that whatever, but it got rather tiring. Not all of the content in the game is nonconsensual, just if Claire isn't defiant enough (a stat which I found rather difficult to raise through non-cheat functions) she'll be helpless on her back a fair bit. Also there's like three or four questlines of her being enslaved for a bit.
Beyond that, the biggest downside I have is that because the game is a work in progress, of course, there are a few deadends here and there and points that really ought to be gated off as they're simply not ready. Which are obvious and annoying as opposed to "heck I'm trapped in this dev space."