I have nothing but good things to say about Nissan. I've owned a 1997 Maxima, a 2001 Maxima (wife's car), and a 2005 Infiniti G35 that I recently traded in for my new 4runner because we needed more space (TWINS!). In over 350K miles as an outside medical device salesman, my vehicles were in the shop one time due to a faulty HVAC blower on our 2001 Max after 85K miles. Not one time did my Nissan vehicles ever fail to start.
Nissan's biggest issue (in my opinion) is that their interior materials are several steps down from Toyota and Honda. Other than that, Nissan makes several affordable vehicles with solid engines and great financing rates. The Maxima, Altima, Pathfinder, Xtrerra, and Titan are reliable options for people who can't or don't want to pay for Toyota quality. I'd drive all of those vehicles before I would a Ford, GM, or Hyundai/Kia product.