I've been very happy with my Samsung S3 since the day I bought it. It's a great phone with a lot of features that make it good fun. However, lately I've been finding the TouchWiz launcher a bit slow to work with. It seems a bit laggy at times which isn't a good thing on such a powerful phone. So I experimented with a stock Android launcher and that was fast and responsive, but I still found it a bit slow to use. It was time to look for a more radical alternative.