I'm attaching a link to an excellent article on Forbes that breaks down the pros and cons. The bottom line is interesting; the free installation remains valid until 29th July 2016. So, you may wish to defer installation for several months, as there are problems at the moment. Notably, if your system uses Nvidia graphics driver there is a real deal breaking conflict. Watch the space
Link to Forbes article
PS I did note that Harry had no problems with the Nvideo, but the above article highlights it, so it must still be bothering some.