I was looking for a new AC and sent a "salesman" t...

I was looking for a new AC and sent a "salesman" to try and sell me a new unnecessary system. After asking me several questions and typing it into their tablet they claimed I needed a 4 ton unit to replace my 3.5 ton unit. I asked why I needed to go up a half a ton and the salesman kept reverting to that's what the fancy computer spat out based on my needs. I asked if I could get a 3.5 ton unit and he told me it was the exact same price as a 4 ton unit.. I decided to get a 2nd opinion and told me that based on my house a 3 ton unit would suffice at $2k cheaper than the quote Service One gave me. I have had that unit since the beginning of the summer now and it's been great. ALWAYS get a 2nd opinion and don't rely on what one salesman tells you.