Yes, you really do. As long as it may seem, it will truly be worth it. The slow cook time allows the flavors from the seasoning to get inside the meat and make a melt-in-your-mouth sandwich. Try and resist the urge to peek in on the meat too. Every time you open the lid, it is recommended to add about 20 minutes to the cooking time because of the hot air that is escaping from the slow cooker.