I bought this printer 3 weeks ago as a replacement of the exact same model. The OfficeJet Pro 6978 is a pretty good printer for the price I paid but I am disappointed with the reliability. My previous 6978 printer stopped working (the print head died) after 26 months of light use where as my much older Deskjet still working after 10 years. I would recommend the buy the 3 years care pack if you wanted to use it for at least 3 years.
It was not clear before I purchased this printer that I cannot scan to computer creating a pdf. Now I have multiple steps to create a pdf of receipts for my business. Bummer!
HP's internal operating system intelligence in both my Spectre Laptop and Office Jet Pro 6978 guided me through the replacement of my HP Model 6830. I've been working in the computer industry for over forty years; this was the best end-user experience yet.