This game has peaked my interest, however I'm not totally sold on the P2P model for any game. For me it comes down to pricing and time I want to/can commit to the game. $15USD is $20AUD, per month. I'm not comfortable with paying that for a monthly subscription for a single game, for myself. I've done it with other games and I hated it. I felt compelled to play to get my money's worth out of it and I never felt as though I did.
The whole converting ingame currency into game time is cool, but the average player doesn't have the time to be able to do that. So the majority of the player base are going to be paying to play. They can't make it too easy to do, or else they shoot themselves in the foot when everyone just farms credits and converts them to ingame time.
With what I've learnt about the game so far and the team working on it, I understand completely with their choices on doing this game as P2P. It is the best option they've got, unfortunately for me, I may not bother with/be able to afford this game dependent on how much they charge for it. I know they plan on doing a trial period, which I like the idea of and will hopefully be enough to allay my fears and encourage me to play. I've got other friends who are also interested so I know I'd be able to play with a group. My last concern is grinding, all MMO's have it, but I don't like the idea of paying to grind for months on end to watch my work get decimated in a disproportional short amount of time.
I'm going to keep tracking Dual Universe as this game is another iteration of the space game I've always wanted. Who know's they may change my thoughts on P2P