Instruct: Classify Amazon reviews into positive or negative sentiment
Query: There's a Reason This Thing is Discontinued by HP...

Let me start out by saying that I'm an HP-certified printer tech, and I generally really like HP's printers. The HP LJ 8550n has excellent print quality, reasonable print speeds, and a high capacity for upgrade. Unfortunately, it's also a constant problem. Even lovingly maintained, this printer is a royal pain in the pocketbook. In the course of 6mo, I've had to replace 1 formatter ($1500), 1 duplexer ($200), 3 transfer kits ($300), and countless other parts that shouldn't be replaced that often. Take the advice of an HP guy and avoid this money pit. HP has many other printers which are far superior to this monster.