The idea at Pinspiration as that they have selected some crafts (string art, wood signs, jewelry etc) found on Pinterest, and they provide with the supplies and an IPad with instructions for completing the project.
Positives:
Nice location, with nice staff. I'm not aware of any other store that offers these types of projects. What I have made (2 wood plank signs), I have liked a lot. I like that instructions are on the iPad so the project is self-paced and the staff is not in my business.
Negatives:
It's pretty pricey. Both times I went I thought "Wow! Am I really paying this much for 3 small pieces of wood nailed together and $5 in paint?!?!" Also, I made signs twice because I find that I can't always find an interesting project.
Overall, fun, expensive, and I highly suggest looking into available projects in advance.