Symposium Ulta Shelf under floor standing speakers - Any Thoughts ?

Symposium is no doubt a great company with a long with standing pedigree in the Audiophile community. I was looking at their products and they had mentioned that they do have a platform that will work wonders under floor standing speakers. So, I though I would toss the question out to the group and see what everyone thought. The Symposium shelves do wonders under equipment, so what do they do to speakers ?   Thank you in advance .......

EBM - do not reply unless you truly have something to offer and or have them under your own speakers.