The game is fairy easy even without any equipment (just a bit harder than other OneOne1 games).
Get some money from sexing people and but equipment from the shop. It's not hard to get to the point where you can one-shot enemies.
Their games don't have good track record but I never encountered any bugs that prevented me from progressing - in original releases. English translation is a whole another story. Kagura versions had a lot more issues than the original games and the previous publisher was even worse.
Samurai Vandalism was really bad. But this was the first game after the switch to Unity coupled with OneOne1 idea to always do more in the next game - more heroines, more story lines, more animations, etc. And it backfired.
They scaled things down a bit in Eclipse Witch and it helped a lot. I already completed it 3 times and the only crash I had was during anal scene with kinda rare monster (Minotaur), which is nothing.
I will shit on OneOne1 every time they release crappy, buggy mess. But this is not it and it deserves praise. Content is good, game runs fine. The only thing to complain is the fact they are not using their new engine to the fullest potential and the game is still a typical, generic RPGmaker experience. It's an improvement since holding "confirm" doesn't guarantee your victory (unless you farmed levels like a madman) like in previous games but it could be a lot better.