It has been several months since the work was performed. I waited this long before writing a review so that I could be as objective as possible. First, let me be clear that this review is of the company that installed the windows, not the windows themselves. Secondly, a bit of history. I have owned three houses in Jacksonville. I purchased replacement windows for each of them. On the first house, I used Window World, and had one of their subcontractors install them. On the second house, I also used Window World products, but installed them myself. On my current house, I used American Window Products (referred to as AWP for the rest of this review) and had their in-house crew complete the installation. For an installation to go smoothly, a great deal rides on the ability of the salesman to measure and apply his construction knowledge to the particulars of the home, and have the attention to detail necessary to properly order the windows from the manufacturer. The salesman from AWP did a generally good job of doing this. There are over thirty windows in the house, so it is a lot to put on paper. Upon installation, there were two windows that did not fit like they should have. One had to be coaxed into the opening by force, and the other had a larger than intended gap at the bottom, which the installer attempted to hide by placing a strip of vinyl across the gap (the only window that was given this treatment on the interior). The remaining windows were within the range of fitment that AWP likes to see, with approximately 1/4" gaps around the edges, and more or less the same at the bottom. Some of the widows had 3/8" gaps on the sides, which I think is a bit excessive, but I was told by the installation foreman that this is typical for this particular company, and I am sure that is the case. Overall, though I am happy with the way the windows fit, and once I finish trimming out the interior, they will all look great, and the window that fits tight appears to work perfectly, so no harm there. I guess the opening was square enough not to affect it. By comparison, the Window World windows (branded as Comfort World) in my last two houses fit the openings with 1/8" gaps or less. Those windows had a foam strip along the edges, and when the windows were placed into the openings, they held themselves in there and I just had to screw them in and trim them out. I credit this to the salesman who obviously had years of experience measuring and receiving feedback on the fit. That part is a salesman to salesman comparison, which can change at any time, and will vary based on what this one particular person thinks is an adequate or necessary gap or fitment. The problem with a wider gap is that is creates more work for me later on to properly seal it and trim it, and it would have been much more difficult to install them myself. However, a narrow gaps leaves less leeway for out-of-square window openings. I do not think one way is better than the other, just different. Let me make an observation on work crews at this point. I went with AWP this time thinking that their in-house installation crew might have a more vested interest in the installation and do a better job than a subcontractor. I know now that this is not necessarily the case. When I used Window World on my first house, their subcontracted crew did a decent job. The AWP crew did about the same in terms of quality. The part of their installation efforts that is visible is the caulk on the exterior. There is not quite enough space for me to trim this, so AWP installed a bead of caulk, which had to be rather large due to the particular way the house window openings were made, and the larger gap that AWP likes to specify. The caulking job could be better. It looks OK in most places, and I will admit it was difficult to apply under the circumstances, but from an in-house crew, I expected better. I will say that the caulk they used appears to be excellent for the application. Overall, though, the crew was about what you get with most construction crews anywhere you go. No one will build, install, paint, clean, or whatever as well as you would do with your own home. If you want a job done right....... . After I saw the caulk job on the exterior, I decided to finish out the interior myself. Some of the windows on the inside have a gap too large to caulk and have it look good, so I am trimming them in with quarter-round. AWP was very responsive to problems that arose after the initial installation. The building inspector noted that not enough screws were used in the installation and that tempered glass was inadvertently not specified to the manufacturer for those windows that required it. Both issues were fixed in a reasonable manner and time period. The installation crews were reasonably neat and treated the house well, though I am still picking up random caulk tube caps and vinyl trimmings from the yard. I think AWP did a solid job for the price, and I am happy with the result. My overall rating is a B, which I consider to be above average. An A would be tough to get in the construction/renovation field.