At first glance, the fees are less, but you always have to look at everything together: Fees, prices, how long it takes and how certain a successful swap is. They both work totally differently. SundaeSwap uses liquidity pools, where you can always swap at the current price (if it is not too far from your order). MuesliSwap uses an order book, where you can accept a given offer or put your own in the book and have to wait for someone to accept or match it.
At first glance, the fees are less, but you always have to look at everything together: Fees, prices, how long it takes and how certain a successful swap is. They both work totally differently. SundaeSwap uses liquidity pools, where you can always swap at the current price (if it is not too far from your order). MuesliSwap uses an order book, where you can accept a given offer or put your own in the book and have to wait for someone to accept or match it.