I just finished the second session with a Typhon T2. Individual instruments are notably more fleshed out and fuller (not overly bold). Overall dimensionality is improved quite a bit. The dimensionality can be heard with soft passages also. The sound is not just defined by more power. It is of better quality. The space delineation is analogous to that produced by an amp with a very good power supply.
I have used Shunyata power cords for some years. For a conditioner, a Denali 6000S V1 was the first Shunyata with a media player, a DAC, and an amplifier plugged into it. Because of the distance to two 20-amp outlets, I used one conditioner. The first revelation happened when the amplifier was separated onto a 2000T on its own circuit. The soundstage expansion must have been more than 10%. The 2000T was later replaced by a 6000S V2, and the 6000S V1 was replaced by another 6000S V2. Through these changes, the improvement could be described as incremental. No aha moment like adding the 2000T was re-experienced. I was happy with two 6000S V2 on separate circuits. Now this Typhon T2 produces another revelation. The T2 must be among the most successful Shunyata products.
For the poster inquiring about an S250 MXV, the feedback above with 2000T is related to an S250. All later configurations are related to an S250 MXV into a 6000S V2 or Typhon T2. The manufacturer probably advises against conditioners because most restrict current. I have not experienced that with QRBB. I heard my dealer's pair of M400 (now M400 MXV) many times. I am not sure if he has the flexibility to use dedicated circuits or the QRBB feature. I do not recall that setup producing the kind of dimensionality.