Chris 
2015 Nissan Altima Sedan 3.5 SL 4dr Sedan (3.5L 6cyl CVT)
I'm part of the 3 percenters
 I rent the 2.5 all the time and personally wouldn't buy that version.  I do believe it is too noisy and underpowered.  I was one of the few that went with the 3.5 SL (Nissan confirms only 3% of Altima's sold are of the 3.5 variety).  Sure, it was several thousand more, but the performance make it worth it to me, and the CVT purrs nicely (nice engine 'growl') when paired with the larger engine.  Otherwise, it is fully loaded and I'm loving it.  Came from a 2013 Fusion Titanium and had nothing bad to say about that vehicle, but LOVE the new Nissan...