Well, I use GRUB for booting since, let's see... well, since I first installed this system, probably something like ~10 years ago, and it just works, never breaks, and I never have to touch it.
The parent poster was definitely right that Arch pushes all of the decisions down to the users rather than deciding for you, so I suppose how much it breaks depends on how good your decisions are and how much of a Linux expert you are. I could fix virtually any broken Linux system while blindfolded, so I know how to set it up so that it never breaks and doesn't require any maintenance. This probably explains the difference in our experiences.