I have one Raider already, and two more on The Boat.
So, what's the Raider's role really going to be in Armada?
According to FFG its role is going to be for anti-starfighter warfare (ASW), but will it perform that role better than the 6 TIE fighter squadrons that you can get for the Raider II's 48 points? I seriously doubt it.
Lyraeus also suggests it as being a possible pocket carrier to support your bombers with a couple of squadron commands (provided you planned or built for it), but while I think it's an interestingly unorthodox idea, I'm not really sure I see it as effective. Especially in the age of Boosted Comms, and considering the Raider's fragility, I'm not sure what pocket carriers are going to give you for added value. But I'm willing to be convinced.
So what else?
I suppose that it can be used to sneak up on the MC80's or AFmkII's baffles, and deliver some front-to-tear pain, but getting around those Ackbar side-arcs of death, in order to go for that rear flank is not going to be all that simple.