Honestly, breverb pretty much blew me away as a step up from the Pantheon reverb, but I've been unable to find anywhere what the April $79 upgrade special really is, over what comes stock with X3.  Seems like you save a bunch of money....that's always good.  But, it also appears what I already got is pretty full featured.
 
Anywhere where there is a list of upgrades or something that'll make me pull the triggger?

IIRC more presets, a bigger GUI (i think) and more knobs to tweak.

Not sure about knobs but at least three more algorithms for different "types" of spaces.

...from my perspective ...the version that came with x(x) Producer is a fine tool as it is...
I'd love to see the Melodyne upgrade come around again ...the more I use the thing ...the more I appreciate the heck out of it....
 
However ...allow me to say a big "Thank You" to Cakewalk for always offering us new stuff to upgrade our systems.

musec03
...from my perspective ...the version that came with x(x) Producer is a fine tool as it is...

Not know the difference at this point, and on my first look, I tend to agree.  There already is a pile of presets and types of reverbs, that seem to cover  the bases.  Not sure looking at the current list, how valuable 3 more reverb types would be.... especially versus one of the ProChannel modules.  As is, X3 is truly a HUGE improvement over 7PE I was using.

BREVERB SONAR users who upgrade to the Full Version of BREVERB 2 will get an additional 3 algorithms - Spaces small, Spaces large and Sources. 
 
The above is from the Cakewalk store web page for the upgrade.
 
Bob Bone
 

mixmkr
Honestly, breverb pretty much blew me away as a step up from the Pantheon reverb, but I've been unable to find anywhere what the April $79 upgrade special really is, over what comes stock with X3.  Seems like you save a bunch of money....that's always good.  But, it also appears what I already got is pretty full featured.
 
Anywhere where there is a list of upgrades or something that'll make me pull the triggger?

It goes to 11...

robert_e_bone
BREVERB SONAR users who upgrade to the Full Version of BREVERB 2 will get an additional 3 algorithms - Spaces small, Spaces large and Sources. 
 
The above is from the Cakewalk store web page for the upgrade.
 
Bob Bone
 

Yeah I saw that, but it seems the "Sonar" version already has something extremely similar to those already.  Now if it had a beverage dispenser, etc....

DumbKidFromHell

mixmkr
Honestly, breverb pretty much blew me away as a step up from the Pantheon reverb, but I've been unable to find anywhere what the April $79 upgrade special really is, over what comes stock with X3.  Seems like you save a bunch of money....that's always good.  But, it also appears what I already got is pretty full featured.
 
Anywhere where there is a list of upgrades or something that'll make me pull the triggger?

It goes to 11...

I've got an early 70's Ampeg V4 that goes to 12.  Makes Marshall JCM 800 & 900 wimper.  Eleven would be turning down  :-D

I bought an Ampeg V-4 full stack instead of a car when I turned 16. The two cabinets were stolen years ago but I still have the head. The first amp I ever bought was an Ampeg Reverborocket 2.
 
Rocky