Specialty Dining (Carnival Vista)

Hello carnival fans! I am going to be heading out on Carnival Vista in a few weeks and I was interested in doing a specialty dining experience on this cruise just because I have never done one before. I have only done MDR and the buffets. Does anyone have any preferences or recommendations on specialty dining for Vista if you had to pick one? If you do, which one and what should I look for to try, Or is it not worth it and why? Any comments are appreciated!! Thank you!