Just the gelato would have been 4 stars. The esspresso gelato wasn't oversweet with a hint of coffee bitterness. It really complemented the walnut gelato that I also got. However, the service was really questionable. I asked to try two flavours and the server frustrately asked if I was going to make a purchase. Then, when I was selecting flavours for my gelato (that I bought), the (same) person rudely asked me to repeat my order two times.
Everyone has bad days, but when you're at work, you should be professional. In the food industry, your staff's behaviour can impact a customer's experience and decide whether they will come back. Dolce gelato, come for the gelato, leave for the service.