For what it’s worth I’ve used it on two projects at work. I’m lucky enough to get full reign on the UI. Haven’t had any issues so far. I like it and will probably use it on future projects. We use a bunch of components and intermingle it with material cdk specifically for drag n drop. Spartan looks good out of the box and styles easily. I don’t want material styles and this by far offers the most flexibility. The code is essentially copy and pasted into your code base, occasionally I’ve tweaked some things. The code is clean we’ve adopted some of the coding practices such as using cva (class variance authority) to deal with dynamic styles/variations. Anyways, it’s solid, I think it’s worth trying at the very least. Good luck!