TL/DR: Still drinkable.
I’ve been using Soylent since the end of December 2014. I started using it for about 50% of my meals, then bumped up to about 95% after a couple of weeks.
Until this week, I’d only been exposed to v1.3. I liked 1.3. It was smooth (mostly), had a subtle flavor all its own, and blended with other flavors such as peanut butter or frozen fruit quite nicely. My normal prep included mixing in some ice cubes to thicken it up and keep it cold as I sipped on it throughout the day.
Yesterday I tried v1.4 for the first time. Wow. It’s thick. Takes almost twice as long to pour out a serving. Without the vanilla flavoring, it’s not as sweet, and I can definitely taste the added sodium. The post about it trading like Bisquik isn’t far off.
That being said, plain from the pitcher it’s not bad. Not as good as 1.3 from a flavor standpoint, but certainly better than off the shelf powders that are available as meal replacements. Once I blended in some ice cubes and pb2, we’re definitely rolling again. The salty taste is still there, but not enough to make it taste bad. The texture when blended with ice is even thicker than before, and I like that. It’s very milk shakey now.
I can see how people that are used to previous versions can have issues with it, but I think that’s just the nature of an ever evolving product. If someone started drinking 1.4 without previous experience, and without previously conceived notions based on the reviews of other people, I don’t think they would think anything extremely negative about it.