It really depends if it is a 2011 13-inch or 15-inch. The 15-inch model has a well known video card failure which is expensive to repair and is in the middle of a class action lawsuit. So if it is a 15-inch model I would not buy it. Now if it is a 13-inch it better be a smoking deal. Tech has changed a lot with newer models. Even a MacBook air will run laps on a 2011 Macbook pro 13 inch. I had a 2011 15-inch macbook pro myself and ended up selling it and replacing it with a late 2013 13 inch macbook pro. I gained USB 3.0, a PCIE hdd so twice as fast, and a lighter more portable machine. I paid a bit more $1159 refurbished. But also I scored a 2013 13-inch macbook air off craigslist for $400, so search around. The macbook air even is faster than the 2011 MacBook pro due to the PCIE hdd. If you are doing any serious video work then yes the quad core is nice but it isn't huge. I had a late 2013 27-inch iMac fully loaded before I went with laptops and yes the iMac was very fast but I can do just as well on the 13-inch macbook pro. Plus the battery life is night and day, I can go a full day and not use the whole battery. With the air it is even better. Check the Apple refurbished site and see if it makes sense to save $100-300 and lose a 1 year warranty with phone support, and you can also buy 3 year warranty. Just remember you will have questions and having the phone support can be a life saver considering you will be new to OSX.