It's so hard to review restaurants in Vegas. It seems that they don't operate the same as any other place in the US. I generally expect high prices, mediocre service, a bad location or environment. However, I thought Trevi was a nice surprise.
Trevi is located in the middle of the Forum Shops attached to Caesar's Palace. It's a mostly "outside" restaurant on the piazza near a replica of the Trevi fountain.
My friend and I put our names in. It only took about 15 minutes on a Friday night. The host sat us at a two top near a pillar. It was so awkward and we were right where the servers were setting up all their trays of food. It was awful. We were moved to another table which was much better.
Our server was good though he disappeared for a long time at once point. Towards the end of the meal the service was great so he must have been busy.
My friend, Jeffrey B., ordered the minestrone. I tried it and it was excellent. He also got the eggplant parmasean. He said it was good but the portion was oddly small. I order the lasagna pizza. It was a huge deep dish pizza with layers of cheese and sausage and sauce. It was delicious and I didn't even eat half. The bread and oil was also very good. For dessert we got the Spaghetti Ice which was ice cream made to look like spaghetti and meatballs with strawberry sauce. It was really good.
Overall, this was a good meal. The atmosphere was wonderful. I would get the pizza lasagna again but just split it with someone.