I agree to take the reviews with a grain of salt. If they are specific reviews about certain problems that they encountered that is one thing, but I see way to many posts...."it was horrible" and then don't say what was so bad.
If San Angel appeals to you and you like more traditional foods (not tex mex) then go and see for yourself.
We love this restaurant. It is so romantic, the best atmosphere in all of WDW, IMO. The food was good, service was good and we had no complaints. It was a bit different for us, as I normally like more of a tex mex style but I found it very enjoyable.
Have a good trip!!