You couldn't pay me enough money to vape bouillon cubes, however they were processed. Okay, technically you could, but you might not want to.
As to nic salts I have been using them for a while. I vape at the same percentages as regular nicotine, I just enjoy the smooth, no throat hit vape (which I like) and what I was going for. As far as flavor, I really can't compare as the regular juices I bought before trying DIY were so heavily flavored I certainly didn't taste the nicotine either way, but I do enjoy the smoothness of nic salts, they aren't harsh by any measure and in pure form they have a hint of "salt" smell but for all I know that could be psychosomatic. I may have to buy regular nic for the husband if he wants me to DIY, he hates my juices.... (And I hate his, I tried ONE inhale of his vape and felt horrible pins and needles on my lips, throat, and lungs, I almost took Benadryl in worry of an allergic reaction. I don't think I'm allergic to PG, but DEFINITELY over-sensitized to its effects. When I can I get my flavors in VG even, although less than 5% doesn't seem to be so bad. But 50/50 sure is.)
Guess we won't be stealing each other's setups.
Good luck with the nic salts I hope you enjoy them.
Anna