Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Highly unreliable product for its price

When I first purchased this product (made by Vessel), the charging base was defective. This was replaced by the manufacturer at no charge. However, over the next few years (read "AFTER WARRANTY") all of the lamps began acting erratically, lighting when they should be charging, turning off when removed from the charger, not lighting at all, etc. I contacted Vessel several times asking for assistance trouble-shooting, I even offered to return to them to be refurbished. Although they agreed the charger was most likely defective again, they offered only a 15% discount on purchasing any replacement parts. All of the possible replacement parts (batteries and/or charger) are expensive. I loved the product when it worked properly, but it is far too expensive to last such a short time. While it lasted, this product was great for use in our RV.