It is a very good value for the money and more intuitive to use than a TI.

Great Price Great Value

Excellent value for the money

The only small disadvantage is that connecting it to the internet isn't as easy as with TIs, and there appear to be fewer programmes available for the Casio

But if you go on to study circuits and upper level engineering topics, then this Casio 9860gii sits in a sort of "nowhere-land" -- It isn't as powerful or usable as you'd like, but also not as simple or cheap as some of Casio's great scientific calculators.