I also had an AT120 (pre usb days). It is a great TT to delve into LPs and see if you stick with it, then eventually upgrade if you get hooked on vinyl.
As noted, upgrade the stylus right away to ML microline or SH shibata. It makes a significant difference. I also chose ML.
...........................................
Soundsmith's explanation of stylus shapes
https://www.sound-smith.com/articles/stylus-shape-information#:~:text=There%20are%20of%20course%20bonded,(Soundsmith)%20and%20so%20on.
note: cartridges with advanced stylus shapes cost more, however they last much longer than elliptical, so hour for hour, they are really not expensive.
.................................................................
It's Built-In optional phono preamp. I had a well respected McIntosh C28 SS preamp, up to specs by Audio Classics. I preferred the AT120's dinky phono preamp to the C28's phono stage.
Later, sold the C28, bought McIntosh Tube tuner/preamp mx110z, also up to specs via audio classics, phono is preferred to the AT120.
Then, during covid times, staying home, I upgraded everything (main/office/basement) and gave the AT120 to a friend who is quite happy with it.