We bought a spa-n-a-box and within just a short period of time (during warranty), the unit went bad. We had to pay shipping for a replacement unit to be sent to us (required after 30 days). The unit has been running for almost 60 days and has gone bad again. According to the company, these products are long lasting for several years, yet we can't get one to last for more than 45 days. Each time, if we want a replacement, we have to pay almost $90 for shipping. We were willing to do this the first time, but after receiving two bad unit... read full review »