For TWENTY BUCKS?
You need to skedaddle to the seller's and Do. The. Deal. As in: You're crazy if you don't. This is a very solid, reliable unit, with a ton of fun accessories (browning dish, cooking crock, popcorn popper, candy maker, etc.) available.
The touch panel can have issues, but they are fixable; the panel is not like today's cheap plastic ones.
When you buy it, ask the seller if they still have the temperature probe; if they bought the thing new, the probe is probably rattling around in a drawer somewhere. Some of the cooking functions are enhanced by use of the probe. If they don't have it, it's replaceable off eBay or by keeping your eyes open in thrift stores.
GRAB. IT.
NOW.