I think that it is much better to use Rocket ICO because they will do the due-diligence themselves so you can really trust the projects and invest with confidence.
I personally feel that doing your own research - your own due-diligence - is better than taking advice from a third party such as Rocket ICO or any other ICO or project. In most cases, if not all cases, you will receive a biased set of information and that is not fair on any ICO regardless of which one you follow relentlessly. Rocket ICO for example is a platform that connects experts in their efforts to handle the blockchain community and build members trust. But it will take much time and resources to do this. Resources might not be the issue, but time is of the essence. People want to find the answer to a solution today, not tomorrow. This community needs to find peace of mind and in my opinion DIW can give you this, along with security of all your data. Knowing that your virtual life is safe from harms way is something i know would give me peace of mind and i would be able to sleep well at night knowing that i won't be hacked or scammed again!