If there is no maximum limit of collection is not so interesting from the point of view of the investor as this will try to enter the first to the project to get a good profitability.
I personally as an investor try to find projects that have a maximum collection limit of between 3-5 million in the ICO so that when it comes to market the total capitalization of the tokens can be multiplied by the maximum number of times.
In this project you are saying that there is no maximum limit of collection and that until the end of the ICO you will distribute the tokens according to the money raised.