15% APY is still non sense thing even when such service was offering the lending service and how is it possible for the such service offering this 15% of APY while another project has already offered only up to 3% - 4%?
That needs to be asked by the creator of such project especially it's for staking USDC and how is it possible? I believe this defi is not even the same like exchange site which has active source income.
, the most important thing is that the smartcontract is without tricks, so that you can get your own back.
That needs to be fully audited but the question is whether the team wanna publish their own code to make others can verify the contract or not?