I've only used ComfyUI for videos, I'm still stuck on Automatic1111 for image generation. Once you get nodes for different Workflows to try installed and get to understand the various available models and their sizes, strengths, and limitations (plus ALL the many settings tweaks) it is so much fun experimenting. But unless you have a super strong box be prepared to wait a lot. I, myself, have a 3060 GPU with 12GB of VRAM and 32GB of RAM, so for me it does take at least 4 minutes per generation or more depending on the Workflow and model.