This Macbook Pro 15 came out in 2011 with 2nd gen Core i7-2720QM 2.2 GHz quad-core processor. This model MC723LL/A is the higher end configuration that Apple Store use to sell for $2,199
If you pay full price $2,199 to Apple online or in one of their stores, you're a sucker. It's usually available for about $150 cheaper at $2049.
If this MacBook Pro 15 has a shortcoming, it's the 4GB RAM. A lot of high-end PC laptops are selling with 6GB or even 8GB RAM. Many people who buy this Macbook Pro laptop decide to buy more RAM separately and install it on their own because it's pretty easy to pop in new RAM modules.