I got a Kobo Libra Colour on its release and I also could not be happier. It is my first eink device so I've no experience with other devices. I was reading digitally on my phone prior. The kobo is pretty bomb proof and is repairable as well as being pretty open. I don't know what other readers look like IRL but the libra colour looks great. It apparently only uses the colour rendering when there is colour which would help? Idk, I love the thing. I've been taking notes on it, too, which has rendered my fountain pens rather neglected since I got it. It's the furthest I've ever gotten into digital note taking lol
If you had used another eInk device you could tell. I did pick up a Kobo Libra Color as well and while I like it there certainly is a noticeable grain and contrast loss compared to my B&W devices. It's just a little less sharp and requires more light to read from. For people just reading novels I think the color screen isn't totally worth it. The Libra Color does finally have a decent CPU compared to prior models so it is nicer on that front but I don't think it's worth it for everyone.
