Well, yes and no. Erlang's GC is simple, but incomplete. Shared data structures like ETS aren't GC-ed, and there are many data structures that you simply can't implement in Erlang because of the way that GC works. For example, you can't implement Java's concurrent hash-map in Erlang. Erlang relies on C code whenever it needs shared data structures.

So the simple and effective GC comes at the cost of a limited programming model. For Erlang, it's the right tradeoff, but not for every environment.