Now that I've used it once for my work, I can comment on it in my opinion. I use it for photos of interiors, cider houses, restaurants... also for close-ups of people where I need it to appear quite deep (a chef with a plate for example). The first couple of times I used it with a tripod so manual focus isn't a problem, use the Liveview to focus (everything looks so sharp no matter what parameters you use, it's hard to tell the specific focus point), i close the aperture at 7.1 or 11 and that's it, everything in the picture is perfect. For handheld photos it's easy to get the point by using an approximate hyperfocal and just closing in at f/5.6, a few extra shots just in case and no problem. It's not as comfortable as my 17-40L, with its ultrasonic focus of course, but at this price point let's see what other ultra angle you have...none. The brutal sharpness really surprised me. Very good picture quality for what it costs, impressive. The colors are very good, like any other good lens. Chromatic aberrations... What is it? I haven't seen any of them yet. The geometric distortion is very moderate for the angle as long as you take the photo from the right angle. For my work, many cider houses, not being able to put a good UV filter in front of it bugs me (there can always be accidents with people and drinks), but hey, extreme caution is required. It's slightly lighter than the 17-40 mentioned above, has a relatively small size and is very portable. The focus ring is very good, too long for close objects, and it rotates well and tightly, it doesn't move by itself. The aperture ring is the same. Since I'm used to using old manual lenses (with my analog cameras), it's not that awkward to use either. It doesn't have the plastic feel that other lenses give, it's well built without being a black leg, but it doesn't feel like you've just bought a toy. Due to the case's shape, which serves its function well and is easy to put on and take off, the built-in sunshade will soon be covered in scratches, but hey, that's nothing. Of course, I hesitated for a long time before deciding to buy it (it was the historically low price that made me do it), but I don't regret it in the least. For its characteristics, not for constant use or to "tie it to the camera without removing it" but for whatever use I give it and at this price... I can hardly ask for more. Nice birthday self gift :)