I've used 3 or 4 specific MF towel wash products, and I've used Tide & All free and clear. I don't know if I noticed a difference to be honest. I have Adam's MF Revitalize, and I think it does make my towels slightly softer, and does seem to do good job on stains. For all I know the softness is a placebo effect. The less stains I'm sure was real, but it wasn't like a day and night difference between it and Tide. I'm not sure what reviews you're reading to make you think it's too good to be true. It's a solid MF cleaner, don't know if it's any better than the Wolfgang I used before it. I don't even know if it's worth the price premium over All, which was cheaper than Tide, which some people say is as good as a dedicated product. And even Tide's worlds cheaper than these dedicated ones. I'm pretty rough on my towels tbh.
And I find the Adam's label to be a bit confusing, can it be used as a stand alone? I know they call it a booster or something. I have used it on it's own and it seemed to work well. 1oz per load sounds decent, the other product I've used it's 1-2oz per load depending on how big. It's like regular laundry detergent, more isn't better, and usually too much can leave residue behind. It took me a long time to wrap my head around this. I use to think "oh it says 1oz, that's not enough. I'll add 3 or 4 and get them really clean" lol
You should look into the Wolfgang MF revitilizer. It works good, and I love how the bottle has the squeeze chamber so it measures it out before you pour it. I'm too lazy to get a proper measuring cup so when I use my Adam's, or whatever other brand I eye ball it. With Wolfgang I get the right amount every time, and it's not expensive. But, I do like how the 32oz Adam's comes with a sprayer, so you can pre treat your towels if you're not going to wash them right away.