I was getting a second opinion on my air conditioning unit, so I had Tiger Services over to take a look. I think the guys name that came was Andrew, he was very professional. He took his time, and tried to see what was going on in there. I felt like he did a good job, he didn't take any shortcuts. Afterwards, they gave me some guidance as to what they would recommend, and they gave me what I considered were good options. I still have to weigh all of the options but I probably have to get a new unit soon.