Normally I am a very strong proponent of making your own sangria. The whole beauty of sangria is that it's made with very fresh fruit, using fruits you adore. Sangria is about local and fresh, just like fresh brewed coffee is about brewing it fresh.
However, that being said, there are times this just isn't feasible. Let's say you're throwing a Mexican themed party for teenagers, and for some reason you have to have the sangria all pre-mixed and not made fresh. This could be a solution for that situation.
Full review -http://www.wineintro.com/sangria/goya.html
Have you tried bottled sangria?