Personally, I prefer sanyo massage chairs because they were manufactured in Japan. We all know that this country is the most advanced when it comes to electronics and gadgets. For instance, look at the cars exported from Japan. If one would conduct a survey, on which car makers gives lesser problems and more mileage, Japan manufacturers would still come out as one of the leading manufacturers. Not everyone can be an expert on everything. So I choose the equipments based on the leading brand and manufacturer. Choose a name that most modest and practical people trust. It's like having a guarantee for your money's worth.