It was a very good experience overall.Fast Glass came to do the measurements, within 48 hours of my initial phone call. The technicians were right on time, and the main office called me 15 minutes in advance to tell me they were on their way.The estimate was prepared a few days after the measurements were complete.I had seven companies bid on this job and Fast Glass was the cheapest. Often this scares me to use the lowest bidder, but in this case I felt that the product they use is competitive, the workmen that did the measurements were knowledgeable/experienced and the company was solid. They have been around for a long time, and the sales team was very straight forward and not pushy in the least.They use Cascade windows. The main competitor is Milgard and Window World. The ratings for solar and uv are almost identical to to those two companies. But only Cascade offers the lifetime warranty!The salesman told me it would take two to three weeks to get the windows in from Cascade. A few days after I paid my deposit, I was given an approximate date when the windows would arrive at the shop. He also told me that when the windows come in, we would then schedule the appointment. The windows arrived on the exact day he anticipated. My schedule got very busy, so we had to wait two weeks for the appointment. However, Fast Glass was ready to come the next day!On the day of the install, three men came to do the job. They worked quickly and efficiently. There were a couple times I caught some things that they missed (some missed caulking spots, but nothing major). For the most part, they did an outstanding job and all of the windows fit nicely! The crew took about 6.5 hours to complete the project. They left a little more debris than I was happy with. What I saw in the front, they cleaned up quickly, but I had to do a little bit of clean up in the back. That said, for the price, I was fine with picking up a little bit of garbage.I did notice two things after they left. A piece of trimming was missed in the front, and the sliding glass door needed to be caulked around the interior trimming. When I contacted the office they sent someone out the next morning to fix the two problems. No charge and apologies for the trouble. Considering the scope of the job, it was two very minor mishaps.The biggest criticism I have of the entire job, was that I did have a little trouble reaching my sales rep to inform him of the problem. He didn't call me back the first time I called, then again a second time. It was really disappointing to me because Fast Glass had done such an outstanding job all along the way. When he did call back, he was extremely apologetic though and did get it taken care of very quickly. Alls well that ends well.Fast Glass did a great job overall.