I just bought one this week too! Didn't get it for your price but still cheap at $15. One question on the buttonhole sewing control knob. In your picture it is pushed down. Mine is stuck in the down position and I am not sure how to get it unstuck. Hoping you or someone will know about this machine as it doesn't look like whatever is stuck is on the inside of the machine but with the knob itself. Might end up helping you too. I read this is a common problem but easy to fix with oil and blow dryer. Just not sure where to put it!!! Congratulations on your score!
Lisa