This is a game about a bottom MC gets sexually violated by loads of hot Tops in may different ways.
If that's your thing, and you are overwhelmed by the sheer amount of gay VNs out there, "Only I Have Skills" definitely worth your time, as it does a great job on distinguishing itself from others.
First thing first, 99% of the time you have total control of whether a sex encounter happens or not (just like it's your choice to play this game),
Even the non-con encounters, it's your choice to go there.
Only exception that out of player's control (up to V0.18), is the first encounter right after you start the game, I guess that's dev sending the message of what to expect from this game.
The story itself is liner - as in most choices are lead to the same results, with a few lines' differences to acknowledge your choices.
But there are a few branching into different scenarios - since the game is liner, the Un-canon ones become One-Shots that meet the "Bad End" (which will be "auto-reset") sooner or later.
Especially so when It opens up quite a bit after you reach the free roaming part.
This means you can actually experience meaningfully different scenarios, but the game doesn't over-complicate itself that increase the development difficulty (and drag on forever like many similar establishments).
The sex scenes are so well-made, extremely hot and with very good pacing - there's no long blue-ball period nor too frequent that numb your sense, so one could technically came to every one of them during one sitting (ahem).
The writing also improves overtime noticeably: there are more and more flavoured text, and you don't feel the scenes repetitive even after you've seen so many of them.
The arts are remarkable: There're so many encounters, and most of them have very hot and standout sprites.
What best is there's no pointless painful Grind, you gain skills (which enable you additional scenes / dialogues) by choosing to engage in unique sex, not by repeatably doing something boring / or become mindless after few times.
(Did I mention you can totally skip the puzzles if you are not feeling it?)