I got this slow cooker to try out and review and it is just OK. The features and functions of it are nice and work, but it's missing a couple things that could make it better. 
The lid latches and locks closed and in place but then when unlocked the metal wire clasps and the locks just flop around. When opening the cooker and holding the lid to the side vertically so moisture drips back into the cooker the locking latches just dangle there and then you have to grab them and get them out of the way to place the lid back onto the cooker. 
The temperature controls when using as a slow cooker only has a low / high setting plus a keep warm. The low cooker is actually more of a medium level heat so it would be nice to have a true low/medium/high like some other cookers. 
The sous option works, but a traditional sous vide cooker with circulating water works better and produces better results.