The Melody Susie nail lamp is very high quality and works perfectly. I love how it automatically senses when your hand is placed in and taken out of the machine. I have noticed that 2 minutes is the perfect amount of time to cure my gel polish. I apply a base coat, one coat of gel polish, and a top coat; curing each for two minutes. I then rub a small amount of isopropyl alcohol to set the polish and give them that final glossy look. The ac adapter has a really long cord which makes it convenient to use anywhere. The bottom is removable to make it easy to cure gel polish on your toe nails. This is a great nail lamp and well worth the amount of money you save if you go to a nail salon. I would suggest getting the nail polish remover clip caps to make it easier to soak off the polish.