Recs.
Updated
Specs
Pros
Pro Multitasking
While not native to Andoid (yet - it's coming with Android N which is expected this fall), the Tab S2 supports for limited multitasking. You are limited to about 20 apps but Chrome, YouTube, and other applications are supported. Multitasking performance suffers a bit, but at least the option is there.
Pro Great performance
The Tab S2 has Samsung's own Exynos 5433 processor, which has 2 quad core processors inside (one high power, one low power). Only one processor set runs at once, however when performance isn't needed the low power set will kick in instead of the high power set saving battery.
In GeekBench 3, the Tab S2 scored 4175, which is shy of the iPad Air 2's 4547 score but solidifies it's position ahead of the Dell Venue 10 7000 (2900) and Microsoft Surface 3 (3531).