we bought two chairs from filght dental (HR Dental) both chairs are not working from day one.every time we call them the tech never speaks english. if they come they work 2 hours on the chairs and tell us they have to come back to fix again so we never bother to with these chairs .we have paid a more than half the amount of two chairs.we have request them atleast show and demonstrate atleast one chair is in working condition and we will pay for the rest of the chair. which they are not willing we are just wounder what type of customer service... read full review »