I was one of the earliest Plasmo users and it has made building Chrome Extensions an absolute delight (vs. previously an absolute headache).
I helped built a big extension at Clay.com and really wish we had Plasmo then. Since, I've built several extensions with Plasmo and it's been an absolute breeze.
I like the product so much I became active in the Discord with Stefan & Lous, and have many times said thank you for the exceptional work they've done! It's awesome to see how they build, and follow along with their process - they film video updates which are great :)
I'm really excited for where they will take Plasmo - so much to be done in extending the functionality of browsers!