Amazon calculates a product's star ratings based on a machine learned model instead of a raw data average. The model takes into account factors including the age of a rating, whether the ratings are from verified purchasers and factors that establish reviewer trustworthiness.
Its size is small but it is very easy to use and carry to one place to another. Though it has said in the description that it provide 5 gule sticks along with the glue gun but I got 10 pieces of glue sticks. but the sticks adhesion is too good. If you asked me to give out of 10 then I will give 7. The trigger One of these two gun which I have bought was quite loose but you can tight the trigger. And its take maximum 3-4 mins to get heat.