Over the last couple of years I migrated to surfing more and more on my mobile devices simply for the convenience of usually having them with me. My biggest gripe was the onslaught some sites used in ads and trackers. Crystal fixes that right up. Less data used, faster loads, and all you have to do is download it and turn it on.
I have been using this ad blocker since its beta phase, and can tell you without a doubt that it is wonderful.