I'm down ~40lbs since starting soylent the beginning of this year, ~60lbs from my top weight, and have a goal to lose ~100lbs more.
I've had weight issues my entire life, am not a cook, and have for most of my life just eaten convenience foods (restaurant/fast food/heat & eat/etc) which are largely unhealthy. I too know what is like to stare into the fridge, to go on a binge and to use food as a medicine for the soul. The single time that I tried a "diet" I was able to lose ~70lbs, and stayed there for a good year after quitting the diet, but eventually put it all back on (+10lbs) within a couple of years. That diet did work well for me, but was one that was never meant to be used long term (a vlcd), and to have sustained the weight loss permanently would have meant a lot of time spent in the kitchen, not something that suits me well. It took a lot of time to prep my meals, and not being much of a cook meant a lot of sub par meals for the few months I followed the plan.
To make a permanent change you need to make a lifestyle change, you can't just use a temporary diet and then go back to your old ways expecting to sustain the progress you made. I love the idea of Soylent. I believe my health has improved greatly the past 6 months from adopting this idea as a lifestyle, and since I did get so heavily into DIY I have learned a lot more about diet, nutrition and health than I ever expected too.
I now have Soylent in the pantry alongside all of my soylent supplies, but being the DIY'er at heart that I now am, and learning what I have this year about health and nutrition it's hard for me to use Soylent straight up without some modifications. Don't get me wrong here, they have made a great product, I like the taste and could easily use it long term, but given what I have learned I believe that I can do better to meet my own needs. I have been using a modified version for a couple of weeks now to reduce the calories (weight loss) while keeping full micros since I don't like the idea of coming up short daily (I'm a big guy to start with, and with an extra 100lbs even more so), and adjusted macros to reduce carbs a bit.
I understand the struggle with weight, and would recommend to anyone who is going through it to also take some time to learn about nutrition. I've learned it's not as simple as just cutting calories, the source of the calories matters as well. Take some time to learn about risks and benefits of different styles of eating (low fat/low carb/etc). I have personally come down on the side of a low carb diet, and plan to practice it going forward. Even a keto diet looks very promising to me, especially for those of us struggling with weight and associated issues. Which means that to reach that goal, I'll always need to modify my Soylent or practice DIY, until something similar is on the market.