When I had my Spacedeck, I removed the stock platform and replaced it with a Neuance shelf. The sound was much more open with better timing. I never put the NAS platform back in.
I bought mine used and the original owner said he pitched the platform because the sound was much better without it. I read somewhere that Tom Fletcher only came up with the base because a lot of customers didn't like the idea of a table without one....found out if I wanted to order one, $400!!! Wow! And to think the original owner of mine pitched it??? I have mine on 3/4" MDF at this point and it is sounding quite good, so not sure much more is necessary aside from a really good wall-mount....that would be the way I would go.