I don't want to regurgitate everything that has been said so far since it is all mostly sound advise.  I would like to add that numerous AMA's in Discord or Reddit go a long way to ask relevant questions to the developers as well as seeing if their dedication to the road map is true and on pace.  To many projects have fallen behind due to scams, development disagreements, and other various issues that cause a project to fall flat on its face and the investors footing the bill.