Cuisinart Rotisserie Oven - Big and bulky and a pain in the butt to keep clean. Takes just as long if not longer to make a chicken in it, than it does just putting it in the oven - and it more or less just produces the same results. Even though the unit is huge, there is not much space inside for anything more than a small or perhaps medium size chicken - and it's practically touching the sides. Even after just one use the grease is practically permanently baked onto the interior walls. The grease tray is also too shallow and frequently overflows while cooking.
Presto Pizza Maker - Again, there is no benefit to having your pizza spin around like this, and only get partially heated. It still takes a long time to cook the pizza and doesn't cook it evenly. The top is usually burnt before the sides and bottom are done. In addition, the center of the pizza doesn't get cooked evenly, and is usually cold.
Jack LaLane Juicer - Sturdy, but poorly designed. The spout is so low you can't fit most glasses under it so you instead have to juice into a shallow bowl then try and pour from that into a glass. Overall the unit is way too big for what it does, and there are far too many parts to clean just to make a glass of juice. The blade panel is extremely sharp and it's difficult to get all the food bits out of it when cleaning it. The unit itself stains easily, especially the white model, so carrots and beets will leave marks in the plastic that will not come out - I suspect there is BPA in this as well. You can practically fill 1/2 to 2/3 of your dish washer trying to wash all the parts to this device. There is a separate detachable handle needed to remove and replace the blade ring, which can easily get lost.