At work, so I can’t really break each article open and summarize it’s contents (the power of @Mista eludes me), but for your perusal:
www.theverge.com
www.gamespot.com
www.ign.com
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Nintendo Switch OLED hands-on: a small upgrade that makes a big difference
It’s not a Switch Pro, but it is very nice.

Nintendo Switch OLED Hands-On: It Isn't The Console's True Successor, And That's Just Fine
We got our first hands-on with the new Nintendo Switch OLED, and while it's not the next big thing, it left me impressed with how much it improved the console.

Nintendo Switch OLED Hands-on: We Compared It to the Original - IGN
The latest Nintendo Switch model is a no-brainer for newcomers, but more nuanced as an upgrade.