Did what it needed to - plugged in and heated quickly. At the highest dial setting (settings are not marked it's a dial that turns from off to high) but at high setting it quickly boiled water. The burner size seems sufficient and it seems level. I plan to use it only when traveling to hotels without full kitchens so it won't get regular use. The materials feel cheap and lightweight (lightweight is a plus for travel) but I fear it might be a reflection of quality and longevity so time will tell.

This burner works great and heats up fast. The only minor downsides are that the burner elements are slightly smaller in diameter than expected, and the element isn't completely flat, so a small portion doesn't touch the bottom of the pan. However, the thicker build of the element suggests excellent longevity. I bought them as backups for emergencies and for portable use. They boil water quickly and seem to be solid products.