Terminated: unknown
It is practically identical to the TI-25 and identical to the TI-35. It has the same peculiarities as the TI-25 (see the page on the TI-25).
The TI-35 II has a bigger "="-key, and the "DRG" and "OFF"-keys are swapped. The display is the same, the accuracy is the same, and it's roughly the same size as its predecessors as well.
Even so, there's a big improvement over the TI-35, namely the keyboard is much better and doesn't bounce. And the keyboard is much clearer as well.