I believe there are advantages and disadvantages to investing in a project at an early stage. One of the advantages would be, you can buy the coin at a cheap price if you believe that this project will prosper and grow over the years. Buying at an early stage and cheap price is really a smart decision. On the other hand, buying at an early stage might be a disadvantage too as this will give you a higher risk since the management might run away after getting the early investors' funds.

So it all depends on how your research went through and of course, it depends also on your instinct as well.