Sure, comptime, comptime introspection, comptime type generation, incremental compilation, basically the most important things for low-level programming.
Many low level programming languages don't have them, including C, so while a nice feature, I don't see it as a killer feature, more like a nice to have.
C doesn't have the abstraction abilities of languages like C++ while Zig does, thanks to this feature. This is more than an exponential increase in expressivity (i.e. there are Zig programs that would take exponentially more code in C).
