Howdy, I have a mid 2010 13 inch Macbook Pro 7,1 running 10.10.5 and I have replaced the stock 5400 rpm drive with a Mushkin Enhanced Chronos 480GB SSD:
http://www.newegg.com/Product/Product.aspx?Item=N82E16820226372
I got Trim Enabler running and did all of the optimization/upkeep I've seen...