I do not own the Calais DC(because of the weight), but I do own several DC reels. IMO, I would go with the Met DC.
A- Its a new reel and comes with newer technology; B- It weights less and that is a big factor to me; C- It comes in 3 different ratios(more important is the IPT-inches per turn)
In the long run, $50-100 difference isn't that much for a reel that will last you a lifetime of enjoyment. Paired with your NRX, it will be a sweet multi-application setup!
Jeff