They have a local chain here called Maggie Moos that does the exact same thing. The one in my neighborhood went out of business. It was way overpriced at about $6-8 per serving, and not very good. My kids thought it was fun to watch them pound out and roll up the ice cream, but they didn’t like it the taste of it in the end. Just give me a good, dense frozen custard or a scoop of pistachio on a waffle cone. Heck, just a small cone from Chic-fil-A for each of the kids and they are happy.
I'm with your kids. It doesn't look very creamy.
Nutella Ice Cream = 2 frozen bananas, 2 dollops of Nutella thrown into a blender.