I concur with Kevinflyaway, Alize is a good product with nice perks. Particularly on these vacation routes where AF has low coach fares but also not as good a service. The improved food also makes Alize a better product than Premium Voyageur, which is itself better than DL's Economy Comfort.

Still, Alize is not C.

Now I don't think DL will offer it with Skymiles although it does not hurt to call and ask.

Good if you can upgrade from paid Coach to Alize or paid Alize to C with miles.

Two things to add though:
- the hard shell seats are not installed yet to the Indian Ocean (French Guyana only), for now it is the old Alize seats, 9 abreast in 777 (10 in coach) with extra legroom and footrest, but no hard shell (then it should be 8 abreast in 777, check seat maps).
- flying to TNR, you have to change airport in Paris I think, then fly to RUN (in Alize) and fly another leg with UU (Air Austral) to TNR. Direct flights to TNR are only 4 days a week and leave from CDG, where I believe they have Premium Voyageur (hard shell, business amenities, coach food) service and no Alize (Alize is on ORY-based aircraft).