As someone who likes shooters, but never really had a taste for bullet hell, this is the most mechanically friendly and outright fun genre example that I've played.

Shooters are always a hard recommend to anyone who isn't already looking for one. It's a very niche style of gameplay that tends to play to a very small but dedicated fanbase. However, Crimson Clover makes for a great game to dip your toes into. The mechanics are easy to understand, and the difficulty curve is nice enough that it let's you come to grips with the game you are playing before it starts turning the screws on you. Yet it doesn't feel like an entry level game.

By the way, visit my Skylines Guide blog if you are playing it!