I think it is well worth it at least in my case.
After hearing some people talking about using Black Night PSU with good result,
when I ordered my Raven AC-1, I ordered it with Black Night PSU as it would cost me just a bit more to get the upgrade PSU right from the beginning. Anyhow, there was a slight mixed up and TW sent my table with standard PSU. It took about 6-8 weeks for me to finally get the Black Night PSU so I listened to Raven AC-1 for quite awhile with standard PSU before switching to Black Night PSU. Right out of the box, Raven AC-1 with Black Night PSU, the background is more quiet, more detail, bass was tighter with better pitch definition. The difference was not night and day but certainly quite noticeable and since you have a top notch setup, I think you would be able to appreciate the difference as well. I have no idea how much it would cost to buy a new Black Night PSU so I can't tell if it is worth the money or not but in my case, I think it is money well spent.