I'm going to be upgrading a client's Mid 2010 13" MBP to 8GB of RAM and a Samsung 840 EVO 250GB SSD. She has Lion 10.7.4. She wants to know if it's a good idea to upgrade to Mavericks. I haven't had experience with this exact model so I'm reaching out to you guys. Does your MBP run as fast, faster or slower on Mavericks? Has it been stable? Thanks!!!