I asked customers who bought MadMattr pull clay what they think of it. I made the photo series with our own children.
Read along with me:

Alice bought the clay for her niece, but kept a pack for herself:
"I also happened to have a bag of these for when my niece comes over: she absolutely loves them and can play with them for hours. As an adult, I also think they are fun toys: the difference between sturdy and really sandy is very special and addictive to play with ;)"

Pediatric physiotherapist Angeline loves it:
"I can be brief about it: it is an absolute top hit in my practice, both for the parents and the children.
I mainly treat children with learning and behavioral problems, and they all really like the stuff; some have bought it themselves. The clay takes on the temperature of your hands very nicely, it feels nice and there are no grains left on your hands (very important in my target group). And it is very nice to look at.
In short, I'm happy with it."

Cindy bought the clay for her 4 year old daughter:
"It's super fun, it doesn't dry out and you can do all sorts of things with it. My 4-year-old daughter loves it, she plays with it almost every day."

Eline finds it a bit disappointing :
"I personally find it a bit disappointing. You can't really make anything with it. It falls apart too quickly. For example, a doll's arm falls off. A snake is possible, but you quickly pull it apart and then the clay "sands" around. Fun to fiddle with, but not to make with clay. That's why it's in the cupboard here. But fun to try. I just won't order any other colours."

Willemijn thinks the clay is fine but she has to vacuum after working with it:
"The pulling clay works fine, it's nice that it doesn't stick and it's certainly nice that it doesn't dry out! It does say that it doesn't crumble, but it does. Not a problem, but I still find a lot of small pieces on the floor when I've used the clay?"

Dayenne and her mentally handicapped son highly recommend it:
"My son likes to play with it. He has a learning disability and is very much into touch. It is a bit like Kinetic Sand, he likes to play with that too.
My youngest son prefers to play with 'real' clay.
I definitely recommend it!"

Martine finds the word clay a bit confusing. It is not clay, more like sticky sand :
"We do play with it here! I think it's the same as bubber.
My son is mostly busy hiding beads in it and finding them again. My daughter especially likes cutting it. We are happy with it."

Teaching assistant Tijn explains that hand functions can be practiced well with it:
"What I notice with this product is that it works very differently than clay. Gluing loose pieces together is not like working with clay. You need different skills to handle this like clay. Like gripping the product very calmly and softly. This allows you to let it fall apart / pull it apart well. You can make special shapes with it and it is good for a child to learn to recognize and apply the pinch / pull function in their hands.
All in all a fun and educational product but very different from clay. Hope you can do something with this."