AW2 vs. Nike+

I am debating between the series 2 and the nike watch. I love using the NRC app on my phone but I'm not sure I'm ready to make the commitment to Nike when it comes to the watch purchase especially because I am interested in a gold case series 2. I have read many reviews that said you can still use NRC on series 2, but I'm wondering how well the app operates on the standard series 2 or if it would really be worth getting the Nike version simply for the integration. Because the price is the same I'm having a hard time making a decision. If NRC operates well on a standard series 2 then my choice comes down to case color. Thanks for any advice.