We have an Echo Show 2nd Gen 10 and love it. Although I think of it as an Echo Show 10 gen 1 since the actual gen 1 Show had a 7” screen.
We paid $135 at least a couple years ago for an Amazon Recertified version direct from Amazon which meant it came with the same new Amazon 1-year warranty. Back then $150 was a more typical recert price - not sure if they even still sell them that way. Note, as the much fancier latest Show 10 (“2nd gen Show 10”?) came out, this Show 10 was regularly available for $149, brand new.
Handy for a lot of stuff, but the one people might not think of is displaying their (Alexa compatible) security cameras. Nice to see a larger than smartphone display image size. (Similarly, you can do the same thing on you big TV using a FireTV stick.)