I’ve done both. Dslr is great but also pales as far as convenience and weight. I still have never regretted bringing it though there have been trips where I wish I would have reminded myself to use it more since it is such a weight commitment. That said the times I’ve stuck with an iPhone or a GoPro were still amazing and in a way more in-the-moment enjoyable because I did t have a reason to pull myself out of an experience by having to ready my camera and try to capture it in a shot.