I really like using PromptEngine. However, I have one suggestion. Creating a good prompt always requires trial and error, and it's rare to produce the best prompt on the first try. I believe PromptEngine is no exception. The prompts that PromptEngine generates initially are about 80-90% complete and need some minor tweaking. However, currently, even if you open the "History" tab, only the output prompts are shown, and the original instruction text that formed the idea is not recorded. To make small revisions to a prompt, you need to edit this instruction text. Alternatively, it should be possible to paste an existing prompt into the "Improve" section and then give additional revision instructions. That is my feedback after using PromptEngine. I give tacos 3 to 4, but I rate it a 4 in hopes that it will be fixed quickly. Of course, if it is fixed, then it will definitely be a 5.