I tried this product, and I am frustrated and displeased. Here are my concerns, which I believe are applicable to the majority of consumers.
First, Huel made Stevia and artificial vanilla part of the default product flavor. I've tried several different accouterments, and none of them fully mask the bitter aftertaste Stevia leaves, or the fake taste of the vanillin. In addition, some people actually react negatively to the sugars in vanillin. If you mind Stevia, you will not be able to tolerate Huel's taste at all, and this could have easily been avoided by making the unsweetened version the default to be purchased.
Second, it's not fair to consumers to require a $75 commitment just to try the stuff. It also doesn't bode well for Huel's confidence in their own product. Unfortunately, Huel gives me such bad acid reflux that I'd rather leave the specifics to the imagination, and I'm down half my purchase unless I want to pay to ship the rest back. Huel, let people order samples or something and have a care for food-sensitive consumers.
Third, the product is difficult to mix due to the sheer volume (1 cup per 24 oz water) that must be mixed in. I had to get a thermos and a whisk and make Huel ahead of time in order to produce something drinkable. The included protein shaker bottle was laughably insufficient and resulted, on various tries, in a very thin smoothie on top of a mound of unmixed chalky powder, or left huge chunks of unmixed powder inside the drink.
If you are reading this because you are stuck with $75 of smoothie that doesn't taste good enough for you to drink, my best recommendation is to add 1/2 tsp of each of turmeric and ginger along with a pinch of cinnamon. Huel is earthy, and it pairs well with earthy flavors.
Bottom Line: No, I would not recommend this to a friend