I have one but have not used it in years. My daughter came back to live with us along with two dogs and three cats. It lies under the futon on the porch gathering dust.
However when I did use it I loved it. I made several afghans and baby blankets as well as getting into making sweaters. Look up Diana Sullivan; she used to have many wonderful videos on YouTube about the LK150. If you Google it, you'll find many forums and groups devoted to machine knitting.