I think these are valid concerns -- the humor's not for everyone, and possibly not even for a majority of people or anyone with taste. If it's not for you, that's okay! I can't guarantee it will get better or worse in the subsequent updates. Some things will change, and some things won't. Either way, I appreciate you giving it a shot.
Oh I don't think this is an issue of quality. The art is good, the writing is good, no spelling or grammar errors. It's just that It feels off, i'm half expecting this to be a dream of the main character because teachers giving dildos to take care off is not something even the most absurd anime do. I'm curious what others think of it. I'm sure it will be popular purely based on the art, so I won't have to wait long lol