Looks like you got a good deal! We have two of the mid-size ones. These are 15 1/2 quart. The only thing we use them for is canning, and they work great for that.
However I do have all kinds of pressure cooker recipes if you would like any. Many of these are for meats, sea-foods, fowl, soups, etc. PM me your add and I'll copy and mail all of them.