The Weller D650 Industrial Soldering Gun, according to the public, is a very good soldering gun. This soldering gun is for more heavy duty projects. I myself, have this soldering gun and have use it for more than just soldering, but that is off-topic. The Weller has not had any visual problems for myself. Only a handful of people have reported problems (reviews that are not from Amazon). I totally recommend this product for its durability and power.
