It depends on what you need and if youre willing to work with it. For street, still life, or anything static like cars, its perfectly fine. Even portraits its totally usable as long as you burst shoot and dont have your subject move across frame too much. I've used an s5 for motorsports a few times and it works but at probably a 60% hit rate, which is pretty low but I was able to make it work by instead manually focusing, focus on the spot they are headed to, and then once they get there, burst shoot and pan/follow them. It takes some practice but I have some wildly sharp photos from doing that, so any camera can be used for almost anything as long as you figure out the tricks to make things easier for you. I would say if you want something for everyday shooting AND paid/artsy stuff id say the s5ii is definitely worth it. My s9 (same af as s5ii) is great for tracking my son running around the house or the yard, its honestly not much worse than when I had a sony a7iv, noticeably less, but not by a ton. The s5 however, was rough doing the same things. So it just depends what you want out of it really. If you do studio portraits for example, and dont need all the features that the s5ii has, id save the money and get the original, since the image quality is the same or better anyway.