I got this for my son in Grade 10. It has 500+ functions in total. Clearly he's not going to need all of them.
But, it 10 minutes, with the help of the 150 page PDF, it was easy enough to figure out how to do some of the basic algebra and trigonometry functions that he needs.
The screen is a nice size. It shows equations, fractions, and decimals. It's clear and easy to read.
You can have spreadsheets and data tables. We didn't get the calculator for all those features, but they're available.
It comes with a protective case that covers the screen and buttons. The cover, when removed, clips on the back so it's easy to store.