I purchased this 2005 Altima used, have owned it since 2008 Wanted something with some power and sport styling and 4dr. Opted for the fully loaded 3.5L, leather heated seats , sunroof etc. Previous car was a Toyota Solara V6 and to date my Altima has been pretty much perfect except for an alternator that went out. Other than that it has been routine maintenance, oil, brakes which is the norm. I would actually consider getting a newer version of the Altima which I usually don't do.
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Pro's: Acceleration, styling for its class, Pricepoint, looks better than Camry and Accord in my opinion. Very Reliable

Cons: More prone to rust than other cars according to my mechanic. Little heavy on gas but I went for V6. Not a fan of the plastic wood trim