It's a pretty fun experience, maybe something you'd try out once or twice, but probably not too frequently. The icecream base is just a plain vanilla soft serve and you add on dips and toppings on. I think it's wise to get a mini or small and just try out the different dips and toppings, since you're just getting more vanilla soft serve when you opt for a larger cone. You can't pick 2 different dips anyways. They do have a ton of options in terms of dips and toppings, so it's pretty difficult to get bored of combinations there!
Personally, my mini dark chocolate with pistachios for $2.5 + tax was a pretty delicious treat and definitely added some flair to my usual soft serve. While the store itself is fairly spacious, there aren't too many seats inside, just a bench, so it's a walk-and-go type store.