Question about using the aggregator Matcha

Is Matcha safe to use for large quantities, say swapping $150,000 USDC to ETH? Is the amount it says you'll receive accurate, or can it change after you verify? Some other swap apps display a "Minimum Received" quantity, which can make you feel a bit better.

I've checked a lot of aggregators and Matcha always seems to have the best price. Is it legit? Has anyone used it? Is there anything better?