This is one of the few weight gainers I've tried that I liked. There are various reasons for it. One of them is that I've had no side effects or issues with this one the way I have with others. The other is that while you're supposed to take 4 scoops a day, I was just doing 1 scoop a day and it still helped me gain 10 lbs that I really needed to gain as I lost 20 lbs due to acid reflux issues. However, one thing to keep in mind is I also increased my food intake, which I wasn't doing. But for me taking a scoop of this gave me that additional boost in calories per day. I also upped my exercise routine especially lifting weights more frequently to assist in the bulking up process. Friends have commented that I look healthier again. If there are any cons, this is expensive for someone like me. Wish it was more like $20, but still not horrible. I like this weight gainer. Read more