At my previous house I had the ac/heater unit replaced recently by Flores. All I can say are that they have great customer service and very friendly men.
I've had a couple of competitors come in to get us an estimate (them being that they were close in price to each other.) But thought it was a bit too much to be spending on a new unit. Searched here on Yelp and found this company and seeing all their great reviews. Decided to get a quote from them also. They are way cheaper than the other 2 competitors and plus we get a better unit. One thing I liked about it also is that he did not try to sell anything other then what we need and what can be more efficient and not forcing us on something with a greater price because its a great quality.
I highly recommend using this company because of not only how much it cost but how well they treated their customer. They did not rush through their installation trying to make a deadline. Miguel told me personally that they don't like to rush and they only schedule one appointment a day so that they can spend time on putting the unit together correctly.