I picked up Ik Multimedia's CSR a while back for less than 1/2 of list price with a cross grade.
Unless you are recording vocals and live instruments the Hall module is what you'll always be using. Maybe the Room module for a closer sound.
The AU version won't allow you to load the presets in Metro but the VST works fine.
For a nice rich verb I use the Large Church setting which is the deepest and then cut back on it with the wet-dry slider.
CSR has a much smoother and softer tail than Apple's AUMatrixReverb.
Phil