Do you guys have that same journey sifting through 100's of sounds?
Simplistic answer is yes. One of the issues with the KPA is the amount of options.
My personal view is:
1) Looks for amps you like or think you would like to narrow your search
2) Try something, if you like it, save it. If you don;t, move on. In other words limit your time on tweaking, certainly initially.
3) go back to the sounds you down selected and re-listen - you will surprised at how different they sound
4) Always check your sounds how you intend to use them i.e. profiles sound very different at live gig volume
I found myself challenging the sounds I thought I liked...
Have fun!