I'm not going to say it was not a good investment but it is for you to get more information and kindly use your instinct as well. However, I have to warn you of the risk that you may face in investing in projects that is not yet ready in the market.
Fundraising, High APY - quick returns every 15 minutes - that is somewhat interesting but for me, I haven't look its potential and am full of uncertainties.
And yes, that was you who could decide but you should be careful and be cautious enough.
Trying about one or two days is good option I think than have to stake for few weeks later, I worry with higher APY given make price easy for drop drastically. Many other kinds of coins given higher APY reward without a week price have drop drastically. But we don't know the rule of coin talked by OP, could unlock when ever we want or have time for unlocking coins. But if any one want to try be careful and how ever keep selling when receiving reward from staking, not guarantee with higher APY give by some coin price stable, they try how to make many investor interested with their coins project and after have many holder suddenly price drop and not profitable earn from staking but also get loss for investing with high risk coins.