This is certainly a nice looking mirror that you built for your parents. I am sure they love it. Brazillian cherry is such a gorgeous wood and fairly easy to work with. But it is hard on sawblades due to its high silica content.
Jatoba/Brazillian cherry is definitely one of my fave woods. I lucked out years ago when a friend gave me a truck load of flooring that was being discarded where he worked. Other woods were in the lift as well, but mostly jatoba. Cool grain patterns, rich colour, durable but a bear to machine at times and yes hard on blades. I often use a scraping plane in the finishing stages as the grain is often interlocking as well.