As a long-time Arch user, I can say that the switch is not for the faint of heart. Arch won't do anything automatically, including installing basic things like a window manager or a browser - Arch is more of a "build your own OS" experience.

On the flip side, this is incredibly empowering. If something breaks, you can just fix it, since you were the one who put it together in the first place. That's a big jump from Ubuntu, where everything just works, but you have less control. Arch is worth it if you think of it as a future investment, rather than a short-term easy fix.