I have a different model from years ago, but it’s only an 8” sealer. It has an iron base and handle vs the plastic of this model, but that’s a choice I opted for because it’s cheaper. This sealer has variable heat control knob that has a mark for aligning the setting, but it’s really hard to see. My other one has a large painted white mark that is easy to see. In fact, the whole knob and surround faceplate is better on my old one, but I did opt for the cheaper model. Nevertheless, the knob works fine. The sealer does a good job of sealing a variety of thicknesses of plastic. One reviewer complained that the heat output was weak and he had to turn it up high to be able to tear the plastic after sealing it. Some heat strips are not designed for tearing; they’re designed for sealing only. Thinner heat strips, typically, are used for tearing after heating. I tried it on my 16” Vevor, and it tore nicely at a heat setting of “6”, “5”, and even “4”; although, I did have to pull harder on the setting of “4”. It seems to have plenty of heat to do its job well. It has 500 watts of sealing power. Would I recommend it for others? Yes, this is a very good impulse sealer. An iron base and handle cover would be better, but I chose the cheaper version. It works just fine.