I am guessing that some of the user's poor results are due to a poor pharmacokinetic profile. It probably has a very short active life, with IGF-1 blood levels peaking only briefly. Anyone who has used real IGF-1 (whether it is from injectable growth hormone or injectable IGF-1) knows that these drugs take time to produce meaningful muscle growth, despite maintaining high blood levels of IGF-1 24/7.
If even injectable GH and injectable IGF-1 don't cause significant muscle growth within the first few months (much of the initial "size gain" from those drugs is due to intramuscular water retention and/or increased glycogen storage, which will make the user look bigger initially, but that all goes away upon discontinuation), then any product which provides a less pronounced and less stable IGF-1 increase is going to produce even less gains
Of course, GH and IGF-1 can help improve growth rate, but they are nowhere near as powerful as steroids. They take time to provide substantial muscle growth and work synergistically with AAS, insulin, etc. Taking them alone doesn't do a whole lot. If someone really wants to make good muscle gains with GH they better be taking a decent dose and stay on for at least 6 months, in combination with AAS. Although they may gain 10-15 pounds in the first few weeks and look much fuller-bigger, all that intramuscular water will be lost when they go off, revealing their true muscle growth. If they're lucky, they might end up with 5 pounds of new muscle fiber...and that would be considered very good.
GH helped make bodybuilders bigger in the 90's mostly because it worked through a different mechanism than AAS, so if a bodybuilder had maxed out using AAS, he could add in GH and add another 10-15 pounds of muscle over the next few years (if he dose was very high), but that 10-15 pounds of muscle is nothing compared to how much they gained with AAS. It's only once it is added "on top" of all the other muscle they already have that it becomes the game changer. Same with insulin.
Increasing someone's IGF-1 levels for only a few hours per day...and maintaining a peak GH level for less than that isn't going to do a whole lot. We know this because we have seen what real GH and IGF-1 do over the last 20 years. If those drugs need to be used at super high doses (along with insulin) for long periods of time just to add 20 pounds of real muscle...then what can we really expect from a moderate, short-lived IGF-1 increase?
This is just speculation, as we have not yet seen any research showing us how long this product keeps IGF-1 levels elevated, or how stable. Like I said previously, that is the most important question...and needs to be answered before we can determine its worth. As said earlier (in a previous post), if it could increase IGF-1 levels by 150 points and keep them there for even 8 hours, it is a very good product, but how practical it is will depend on its cost...because a product like that would need to be used for many months straight in order to produce meaningful gains. Any "swelling" noticed in the beginning would just be glycogen storage (IGF-1 acts like insulin, driving glucose into the muscle cell, so the muscles get fuller) .