First things first: don't play this game for gameplay. Only play it for the story. The "reboot" does make it more difficult but it's still nothing special.
With that out of the way, WatGBS, in typical DSP fashion, explores dark themes and gets VERY uncomfortable, especially in one of the endings. However, despite this, this is easily one of my favorite RPG maker games. Most of the characters are memorable and quite likable, and the story is told pretty well. The dark themes usually don't feel edgy for the sake of edgy. (except for the ending I mentioned earlier... I really hate it.)
Overall if you don't mind the dark themes (TWs are on the download page) then it doesn't hurt to give this game a try.

One of the most high quality Touhou fan games. It's cute and filled to the brim with love for the original series, the gameplay is engaging and fun, and the OST soothes the soul. This game is the pure definition of comfy and snug. Must-play for all Touhou fans.

... it reminds me, canonically Mystia's singing annoys humans but in every fan depiction including this game she has the ability to sing normally. I think it's the one thing that ZUN should make canon. It makes Mystia one of the cutest, fluffiest characters.