I bought this for my son's 15th birthday to add to his movie night theme.- easy to put the parts together- works perfectly- comes with measuring cup, measuring spoon and scoop- tastes just like movie popcorn ( we got spray butter and popcorn seasoning a movie theater uses.)- easy to cleanInitial assembly was fast and easy. All you have to do is add the cord, kernel hopper, lid and mixer. I had no problem doing this. The instructions were very easy to follow.We have made about 6 batches of popcorn with no burning issues, no staining of the sides. I'm guessing people who have had staining issues haven't read the directions that tell you to clean the machine after use. I can see burning being an issue if someone is lax with cleaning it.Popping was fun. It takes a few minutes for it to heat enough to get the oil hot. Once popping starts it is only a minute or so more depending on how much you're popping.We popped 1 cup and it feeds 4 adults which is the equivalent of about a small popcorn at a theater each.Overall, I'm very happy with this purchase. I will update this post in another month or so to let everyone know how it is holding up.I do suggest this purchase, it has been a great addition to our movie night and was great for my son's birthday.Update: We have had this for 6 months and it works just as well as the day we bought it. We have used this machine sometimes a few times a week, to a few times a month. We have kept up with cleaning the machine and it has not had any burning issues. The plexiglass sides have not burnt and are still just as clear.I am still very pleased with this purchase and recommend this popcorn machine highly!