This is my 2nd set of these type of curlers. The last ones stayed with me for three years. They are so good, I stopped using the "big, home set" and use these type daily. Heat up fast, great lasting curl (particularly for hard to curl fine hair), and don't even need to leave them in that long.Would have given them a 5 - but this set has the awful plastic clips that can leave a kink in the curl. Recommend getting or using a set of the old-fashioned wire clips that come with most non-travel sets if you want a smoother curl.