Alienware 17 R4 in the warranty exchange?

Hello all,

I have Alienware 17 R3 970m base model. Due to some issues, Alienware is now offering me Alienware 17 R4 as part of warranty service. What do you guys suggest? Should I keep my perfectly functioning Alienware 17R3 or accept 17 R4 and return the 17 R3? I am a little unhappy with the lesser battery offered in the new system though. Also please aware me of the potential issues with the new model.

Following are the specs of the new 17 R4 system:

Items in this...

Alienware 17 R4 in the warranty exchange?

Alienware 17 R4 in the warranty exchange?