We came across the Da Gigino while walking the small alleyways looking for a different restaurant and decided to see if they had a table for dinner.
We were lucky enough to get one of the 2 left upstairs. The food is very good I had pasta with clams and scampy(Langustines) and my partner the ravioli, both were super tasty. The service is great and they were not put out when I added a Garlic bread to our order aftre seeing another tables which looked so good.
The prices are very reasonable for Sorrento which can be expensive due to the high number of tourists.
As has been said by others you may need to book in advance but its worth it.