Grant Fidelity B-283 Tube Buffer: Worthwhile or No

Does putting a tube buffer into a solid state system actually improve the output, or is it all just hyped up the emporer has no clothes syndrome?

There's a Grant Fidelity B-283 tube buffer for sale here and I'm thinking about it. I have an Adcom GFA 535 amp, a Morrison pre amp and an Arcam CD75 CD player.

Opinions?

Thanks.