I'm not a fan of the roll on wax. I feel that if used on more than one person, it is unsanitary. When using a wax pot, you dispose of the wax stick after each time. You never "double dip" into the wax due to contamination of the product. I would only recommend this product for home use.
I've been using this for right at 20 years and I think that says it all right there. I bought the kit at Sally beauty supply 20 years ago and buy these refills about every 5-6 years. This stuff is AMAZING! I HIGHLY RECOMMEND this. It's a great price too:)!!