We (stupidly) bought an airconditioner from eBay thinking we got a great deal. We called Advanced Air to install it, which they did at a very reasonable price. The technician asked where we bought the unit from as it is a no-name thing and how much we paid. He said that we could have got something better for our money through them and installed for the same price. I thought nah it will be fine. He said that he gives our unit 12 months to a year tops in good working condition. it's now that amount of time and I think he is right the damn thing is starting to not work as well as it used to when it was new. He was really informative about the type of units they would typically install in a house like ours and explained that the unit we bought will only be good for heating/cooling the room in which it is installed. Lesson learned. We are going to buy a new one in the near future through these guys, they know there stuff, competitive with pricing and can do quote order and install all in one.