Review on HP Cartridge CC640WN Deskjet Photosmart by Solomon Inks

I see many people complaining that this cartridge runs out of ink quickly and recommending the XL cartridge. The XL has more ink and lasts longer, but it's also more than twice the price of this one. It works great for me, I mainly use it for shipping labels and get at least 400-500 prints before it's time to replace it. If I print so much that I thought I would run out too quickly, I would invest in a laser printer. I'm going for "normal" (halfway between fast draft and best quality).