  Pd-intercalated ErTe$_3$ is studied as a model system to explore the effect
of "intertwined" superconducting and charge density wave (CDW) orders. Despite
the common wisdom that superconductivity emerges only when CDW is suppressed,
we present data from STM and AC susceptibility measurements that show no direct
competition between CDW order and superconductivity. Both coexist over most of
the intercalation range, with uniform superconductivity over length scales that
exceed the superconducting coherence length. This is despite persisting
short-range CDW order and increased scattering from the Pd intercalation. While
superconductivity is insensitive to local defects in either of the
bi-directional CDWs, vestiges of the Fermi-level distortions are observed in
the properties of the superconducting state.
