Only tried one type of wet food previously, a German 'own branded' one from zooplus, called Wolf of Wilderness, which I got free with an order of something else. It looked OK, had good reviews, was grain free, so I thought well, why not try it?. He only had one can of it, split between two meals, and OMG, I swear I was picking it up for a fortnight!
He (unfortunately) LOVED it. So much so, that the following day when I opened a can of baked beans for my lunch, he started to yap and run round in circles, because he thought he was getting some more!
I took the remaining 5 cans to our local RSPCA branch, I hope they'll forgive me ...