Oh yeah, Salt is absolutely amazing for easy gearing. Fey is objectively nicer in heroics, but far more work to farm. On HC, I do Salt and Menechtarun in heroic then altar it into L20 gear.
IMHO, L3 is the ideal spot to stone up, too and look, there's salt right there at L3! L8 Lam gear is probably the next best step-up, but if you've been playing a while and already have Fey, IOD, RL, Sharn, the only gain from farming it would be so you can retire IOD/RL (and Lam farming is so intense, it's pretty far from Chill).
BUT, while Salt+Menech is ultra cheap and great for survival, it's not as nice for leveling speed as stepping up to Fey, IOD, Chill, RL, and Sharn during heroic and far FAR weaker at-cap for raiding and RXP.