Instruct: Classify the given review into positive or negative sentiment.
Query: Great product, but very unreliable

This is one of the best products to ever hit the market functionality wise. HOWEVER, the workmanship of this Panasonic is unbelievably bad. It will break within a year, most likely within a few months. At the time I bought this unit, about 10 of my friends did as well most all from different sources. 7 out of the 10 have broken in 4 months. (Mine hasn't yet.) The warranty is only 3 months long. Beware. Great product, but it breaks quickly from overheating. Make your own decision, but do yourself a favor and get a different brand. (Tivo, UltimateTV, or other.) I have heard of NO problems with other brands.