I would go one last time if I were you.
DH and I went for the 1st time a couple of weeks ago, we were hungry at lunch time, weren't in the mood for counter service, so we called Disney Dining and got an ADR at Alfredos about 30 minutes later.
We were seated about 12:00 and the restaurant was pretty much empty. We had a wonderful server who was so nice and attentive, I can believe how many times he checked on us. I had the fettucini alfredo--it was so good and rich and DH had the sampler. For dessert we shared the tirimisu, I was wishing we each gotten our own! I was stuffed, but it was SO good! We were both so impresed with the restaurant, we were mad at ourselves for blowing it off for so many years!