Awesome. Your Prompt Library is such a cool feature. I like your product and will suggest it to my friends and teammates. Do not forget about AMA. And one thing I can suggest is to add a hint somewhere that OpenAI Key is required. From my experience, not all people are tech gurus and it may confuse them.
I love it. With Midjourney I can visually represent my thoughts. While I am not an artist and can´t draw on my own (but I appreciate handmade art), it is a great opportunity for me to create something.