I like that they are very knowledgeable about their product line as well has customer service is great! They make sure to provide you with all of your questions answered before any products or services begin working towards making it better than what was previously available when compared against other companies out there today within this industry. There isn't anything i dislike at present time but if something comes up we will let everyone know right away so no worries here!! We have not had an issue yet however our customers receive nothing less then amazing results from using them during construction phases/renovations etc..