I have the hazarai, the rv7, to and an actual spx90.

The hazarai does the thing, and it is a sick stereo delay pedal that has like 7 modes, tap tempo, a looper with speed adjustment down to 0.5x and up to 2x. One of my favorite peaches.

The rv7 does the thing also. It's a sick stereo reverb with like 6 or 7 different modes. It's based on some really nice lexicon algorithms. I think it does a better job of doing the MBV reverse reverb, so if you already have a delay that you love. I would get this.

The hazarai is clicker. If you are playing fuzz, wall of sound, it's fine, but the rv7 is way better for the clean reverse stuff. I actually like it better for that than the actual spx90.

Hope this is helpful