It depends on how you define the word "promising coin".

If you are following the coin for a long time now, you can somehow able to create your own criteria to consider if it's worth risking your money. Interact with its community and try to read other feedback and views about the coin as your reference. Much better to lurk there for long to see if there's an ongoing update or development about the coin. Active community support and representative of that coin is a must too so you need to take note of that.

No idea about that coin so trusts your DYOR. You can apply my advice not only on that coin but on other coins you wish to make an entry as well.