I think it depends on what you mean by success. For example I can use Claude and NotebookLM to create a slide deck but I do have to make edits. Normally I just use Claude and then open in PowerPoint or Google Slides.
I use Claude because that's what we have an enterprise license for. My recommendation is to create a skill that conforms to your brand template so that any slide creation prompts automatically conform to your brand format
I've used Claude. I have two skills, one is our brand identity and voice and the other is a skill built on our company slides template. when i need it to build slides I apply both skills and it's top knotch!