Here is my mini-review - mini because I don't have all that much to say, but most of it is good. I have been a regular user since 1.4. I think with 1.8 Soylent has made improvements over 1.7. For me, the reduced fiber content was resulting in less satisfying meals. I was beginning to order Joylent (now Jimmy Joy) and mixing it with Soylent to get some of that extra fiber (they use oat flour if I recall correctly) that my digestive system likes. I am very glad to see that RL has addressed that issue by trying out yet another source of roughage, a corn product. I wonder where it comes from - the leaves, the fibers, the cobs? Well, whatever part of the plant is being used, I like it because my Soylent shakes are now as satisfying as ever.
A lot of people have been talking about the grittiness - that is not really an issue for me, since I recall grittier iterations in the past - and a touch of grit doesn't bother me. Come on folks, this isn't a milkshake, it is a utilitarian meal replacement product - and if you want it to taste better, there are things you can do, but that is another thread. For me, the flavor is just a bit better than 1.7, but there isn't a significant difference. It still doesn't taste as good as the bottles, whose flavor I have come to really like, but I am a powder man for a number of reasons - cost, environmental impact, and the ability to change the calorie content of my meals.
So I like it - step in the right direction and all that. And I want to say thanks to RL too. My workday lunches are now longer and more pleasant (because I can just drink my Soylent anywhere), and I have noticed a bit more cash in my bank account as well.