Anyone who has switched from react to svelte ,what has been your experience in a large scale production app ?

What I want to know is majorly about the developer experience .Recently I got to know about svelte ,I saw a video on fireship io channel ,I was really impressed but all in all like I understand what it does and how it optimises things and all the cool stuff of unused css and everything and that it runs on low memory devices ,Currently I am a senior react dev,I consider myself quite proficient with react and tbh there is also the sunk cost fallacy at play. I just want to know a honest experience from someone who has made that switch.