Anyone else with the same MB spec as mine upgraded to Mavericks? If so, did you encounter any issues / problems? Was it a worthwhile upgrade? Anything to look out for? I would be doing the app upgrade as opposed to a clean install. But before doing so, was wondering if it's a good move? Remembered previously when considering upgrades to Lion & Mountain Lion, technicians recommended against it as it would be slow & sluggish since my hardware is on 2 GHz Intel Core 2 Duo with 2GB DDR3 (with 128GB HDD). However there's a wave of feedbacks that Mavericks would actually speed up & be a breeze?