I work in the HVAC business and I would highly recommend the infinity system. It is by far one the best in my opinion. The stat does all the work. It is like a smart system. If there is a system malfunction it will tell you want the problem is. It has reminders to let you know when to change the filters. It it much cheaper to run and cools much better. But I do want you to know that this outdoor unit is much much larger than most air conditioner units. So if you have a small area for the outdoor unit I would suggest that you ask for the measurements. The repairs on these units are far and few but there are problems that can accure but if you maintain your units regularly you really shouldn't have a problem. Plus the manufactur has a great warranty with these.