You can now convert $1 million between popular stabecloins (DAI, USDC, TUSD, USDT) for just a few hundred bucks in slippage and fees. You can't do that on Binance, Coinbase or any other large centralized exchange! At 0.1% fee, A $1 million swap on Binance will cost you $1,000 in trading fees.
And APR for deposits is close to 20% now.