I picked up a 2nd Universal Audio Apollo x8p interface. I'll now have 16 channels of Unison capability plus the 2 extra from my Apollo Twin X.
I also have an ebay offer/bid on an 3rd Apollo x8p that I'll know tomorrow midday if I get that one.
I have had version 1, have version 2 but never used it. Now I'll be on 3.
IMO it's not an up front lib like the ones you mentioned. I see it as a in the backdrop kind of use. Here is what I did with Version 1 mostly just tinkering around for about 30 minutes.
The choirs were done by @Zargg with another lib.
Was distracted by work today so I finally got it all downloaded. It's unzipping for the last 30 minutes and is only about 50% complete.
Anywho, nothing new to add yet.
I'm kind of in the same boat. After Kirchhoff EQ this month, with my voucher, I plan to save up 2 more vouchers and then cancel my sub.
I have 154 of their plugs and the remainder (after Kirchhoff EQ) are not things I ever want.
/rant-on
So, the 8th is when I get my 4evah29 voucher after my CC is charged for the $29.99
Yesterday: $29.99 was charged to my CC
Yesterday and Today: No friggin' voucher
Conclusion: not a deal (yet)
/rant-off
EDIT [14 Dec 20220] solved, they finally emailed me my code. Kichhoff EQ is mine