I started by using the free version of their image upscaler and then bought credits so that I could do batch uploads and enhance more images. When I tried batch upload it did not work. I got in touch and they emailed me back right away. Within a couple of days, they fixed the issue and now it works great. For some very low res images and some images with faces, the upscaler doesn't work that well. The same with images that have text. But those issues are common to AI upscalers. I love the batch upload and the ability to choose different resolutions. In my experience, customer service was great.