Basically Brio is basically a slightly upscale Olive Garden. It is slightly upgraded in every way. The decor is more handsome and there are some expensive materials used to help justify the pricing. The unlimited bread sticks have been upgraded to seeded flatbread (which I actually find quite addictive). The pasta is presented with slightly more flair and maybe even a bit more flavor. None of it is better than you could make at home buying ingredients from Fresh & Easy. The prices are high for the portions and particularly the quality that you are served. It is all passable and passionless.
It is rather popular, as there is not much that passes for fine dining in Gilbert. The food is by no means terrible and the servers are friendly, if forgetful. However, it does not compare well with an authentic passionate italian restaurant,