For a used device, this Kindle has been excellent: its snappy performance, truly-excellent screen, fantastic build quality, and continued ability to receive updates made it a worthwhile upgrade from my nearly-ten-year-old Kindle Voyage. The few drawbacks — somewhat limited battery life, a lack of USB-C, and some wear on the cover — are unsurprising given its age (five years) and relatively minor in consideration of the pros.
Additionally, I want to say that dealing with the seller(s) was an absolute delight, as they were communicative, friendly, and professional throughout the buying process.