This product is simply amazing. While I have an older version of the 84915, it's still a 5 qt. oblong slow cooker that detaches from the base. It's incredibly convenient, once you're finished cooking and eating you can just take the cooker off the base and pop it into the fridge. It also makes traveling with it easy. The only downside is that it takes a little longer to cook than a normal slow cooker, as all of the heat has to come up from the bottom of the pan, as opposed to being heated from the bottom and sides simultaneously.