MacBook Pro’s are awesome. My 2011 version still runs like new and blows away most of what’s current today.
I am using one right now. I bought it in 2011 as well and never a problem. No virus’. Nothing. It is great. Such a relief after suffering so many years with Sony and others.
I could never get my mid-2011 MBP to have reliable wifi under Yosemite. I finally gave up and bought a mid-2014 MBP that is fantastic.
MacBook Pro's up through 2012 are fantastic. Apple is still selling the 2012 version; just bought my wife one to replace her 2006 MacBook so she could access new features of OSX. Newer models don't have the ports that the older models have. Insert an SSD instead of a mechanical HD and enjoy.