I find that the best juicers are designed specifically for juicing - not blending.
Multi-function machines that combine both blending and juicing often make lovely fruit smoothies, but invariably make poor juicers. For juicing I recommend you avoid any machine that is advertised as a blender with a "juice attachment", and choose a custom built juicer machine that is quick to use, easy to clean, and able to extract the maximum amount of juice.