Maxium Underwater warfare.
With those words it tells you everything.
SH5 got so many awesome things to do, i dont like the time limits but they are needed in order to complete the story so that's a +, The underwater life is nice. and it's amazing to swim through.
i do have to admit that the destrution could be better. like in Sh4 where every little piece broke. that feeling i missing but the Damage/poly destrution is great in this too. it can break into 2 pieces and more. it's just takes more time.
I think it's all the money worth. Because you will love to play it. I do need a few controls from Sh4 but otherwise it's great.
It got alot of bugs inside the Submarine. but you will get used to them after a bit time. so dont worry you wont regret that you bought it.