Received the device today and started working immediately. The 15 second heat up time worked - I quickly felt the heat from the tip. The device is a mix of cyan and blue, which is different from other orange, red, or black devices I've used before. What I like best is that the block and holder are separate and don't take up much space on the table. The screen is clearly visible and easy to read. The settings are clear, just look for the icon that is highlighted at this point or find out what modes 0, 1, 2, 3 are. Comes with extra tips and sizes for use. Very easy to use and well packaged. I would recommend it to any hobbyist who needs to solder parts, connect wires etc. I use it for my microcontroller boards. I just got my own garage door sensor with relays, reed switches etc.