I have never tried them, so I couldn't really say. I prefer fresh fish generally. The only tinned foods I would have would be salmon, and my husband has tinned tuna. They are okay for a salad or a sandwich.
I like John Wesf brand oysters in oil. I drain them on a paper towel and butter my biscuits and can honestly say there are never any left on the plate. Many years ago everyone was serving these but it seems to have died right off. Even I rarely have them now and I really enjoy them.