I bought one of these because of the lid and the controllable temperature; and, the 5-star review. Don't know what the 5-star person received but the first unit arrived and I couldn't get the cord to stay attached to the fryer. It is a clever(?)design meant to easily pull away from the pot if someone should trip over the cord thereby avoiding spilling the pot. Apparently, the cord is supposed to be held by a weak magnet with it's shallow electrical sockets engaging short electrical pins sticking out of the fryer. Problem is that the magnet is so weak that it cannot support the weight of a few inches of the cord hanging out in the air. In other words, when you let go of the magnetic plug, the weight of the cord pulls the plug away from the fryer.
So, I returned the first one, thinking that maybe it was a bad magnet and Amazon had me a new one by the next business day (good old Amazon!)
Fryer #2 arrived and I eagerly took it from the box expecting to have the new cord work like a charm. Nope. Same problem. Not to be defeated by some dopey designer, I duct taped the cord to the side of the unit and fired it up. The temperature selection knob seemed a little vague/loose as I rotated it to 350F. It got only warm. After an hour, my laser thermometer said that it was only 115F in the pot. Heck, it would have reached 115F if I had just put it outside in the Texas sun.
Went to the adjustment knob to see what might be the problem and upon turning it back and forth a few times it losened up and would now rotate 360 degrees. Broken without ever getting hot. This one went back too but I learned my lesson and took money back instead of a 3rd attempt. Sheesh.