Review (5/5): It is actually stretchy
I had ready this wax is a flexible wax. Yes, all similar waxes flex to a degree but this one is supposed to be a bit more elastic. That's to help it wrap around tricky areas (ankle bones, knees, etc.). It's also supposed to work well for large areas. I prefer to wax myself, and I don't have assistance. I also like to wax everywhere. I waxed my own back with this stuff and it actually worked. I did larger sections, and was reaching behind myself to both apply and remove the wax. It did indeed stretch and flex well so there wasn't any wax or hair breakage. The hair on my back is the typically fluffy vellus hair. It showed up after I had my second and I just don't like it even if it's not super obvious (or even visible 90% of the time). Admittedly that hair type did make it difficult to see, but again this wax wasn't too fussy. I'm 100% positive I applied it in the wrong direction at times and removed in the wrong direction too. Still, worked great.
I also tested it out on my legs. The hair there really varies from fine and barely visible blonde to thicker and quite dark (and rather stubborn to remove in places). It did a decent job on most of my legs. In the areas where the hair is a bit more stubborn I really had to work in smaller sections to get a good result. But in areas like my thighs I was able to do wide areas with ease and little left behind. On my thighs I have small areas that grow in different directions for no reason. I thought I'd have to do second passes, but I rarely did.
All that aside, I don't think this is the best wax for everyone. If you have a lot of very fine or fluffy vellus hair on large areas. Especially if it's on tricky areas like the stomach or behind your shoulders, and areas such as my upper arms where the hair literally grows both up and down in the exact same spot. This will get the job done. If the hair is even a little bit stubborn, you will probably run into some issues. For those places I'd say the pink version (their Best Loved wax) is a fantastic option.