I studied Finance and Mathematics.
1. You may use this in Actuarial exams or CFA exams.
2. Once you get used to it, it is a good calculator. Most finance textbooks gives examples using TI calculator.
1. Harder to use than Casio, but not too hard.
2. Battery supported, you should change your battery before going into the Actuarial or CFA exam if you have been using this calculator for awhile. I believe it lasts about 1-3 years.
1. More features
2. Easier to use
3. Battery and solar supported
4. Navigation feature, you can scroll up and down on few lines of display
1. You can't use this on Actuarial or CFA exams.
2. School textbooks teach you how to use financial calculator using TI, not this one.
If you are not a hard-core finance person, getting a Casio might be better since it's easier and cheaper to use. However, as an actuary, I use TI most of the time.
If you are a Finance major, plan to take any Actuarial or CFA exams, get TI because you have no choice. (You may use HP for CFA exam, but I think people who started their career many years ago use HP, young people these days use TI)
I hope this review helped.