Pomegranate/Mango Wheat Beer Question?

I am going to be brewing an American Wheat for swmbo and wanted to add some fruit. I do not want to deal with pounds of fresh or frozen fruit and I certainly don't want to use extracts.

My question is, has anyone tried using POM juice in their brew with any success? I was planning on adding 16oz of the pomegranate/mango POM juice to primary after fermentation is complete. This is going to be a 2.5 gallon batch.

Any ideas on whether this would work? Any suggestions?

Is POM juice preservative free? I think one of the big draws to using real fruit instead of commercial juice, is that there are no preservatives or chemicals that could inhibit yeast activity.

POM juice is preservative free as per their website. 100% natural juices.