Firstly - apologies about the sub-optimal sound. I used a little shotgun mic and set it as high as it would go without clipping, but it still sounds a bit pants. I'll use proper recording setups again in future...
Secondly, the only real way to really get an idea of how this amp sounds is to play it. Its immediacy and clarity, especially in the high end is something you can only get from playing it.
Many thanks to Jake!