Hi, I'm new here and was wondering if I should upgrade to Yosemite. My Macbook Pro was purchased in 2011 and I am not buying a new computer. Still using Lion and I am happy but think it is time to upgrade. I use it mainly for internet, photos, email and videos. I do use MS 2008 (excel, word and PPT) for Mac. Reading about wifi and safari issues and don't want to have those problems. Should I wait for more updates to fix these issues or upgrade now? My iPhone 5S and iPad mini are running the latest os. Thoughts? Thank you.