You are very lucky. Had this…
Be glad your car is a Toyota. Had this been a Honda they would have fought you till the end of time over the replacement of the engine. I personally bought a brand new Honda, and after 6 mo, my engine blew, and after years of fighting and going through all the different legal avenues after being denied till I was blue in the face at Honda, I had to fork over $20k in legal costs and repairs. My lawyer tells me that with Honda putting up 5 lawyers against my one lawyer, he believes the bill for their high-powered attorneys was probably over 5 times what my overall costs were. The fight completely changed my family and my life. We will forever shy away from EVER buying a new car. Honda also killed that vehicle and stopped producing it indefinitely. My family learned our lesson, and so did Honda... well, not really, they still sell new cars, their engines still blow, and they still deny warranties. They hurt my family and we will never forget it.
Moral of the story... be glad Toyota is so quick to put in a new Engine.