I can't find my crockpot online but I have one that has settings for 4 - 6 - 8 - 10 which I like. I set it for the desired amount of hours and then it goes onto a warm setting after the cook time is done. It is also large which is nice.
It is just DH and I so the smaller size is nice because I don't have to make as much to fill up the bigger crock pot. I find this small one to work nicely for when I make pulled pork. I use the bigger one for soups / stews.
I also have a 3 pot crockpot which I don't get too much use out of. I bought it for an Easter gathering a few years back. It only has a setting for LOW and HIGH. It gets the job done but I prefer the bigger crockpot with the hour settings.