It's really more of a fluff thing, so RAW doesn't enter into it.
Personalities do remain the same, but having lost the vast majority of his/her memories it's very much up for the debate whether s/he is "the same" person.
Additionally, it's not unreasonable for your DM to claim that since the deva lost all his/her memories, s/he is back to being a level 1 character.
Even if your DM does allow you to return with your earned level and all skills/feats, that doesn't really do much to help you rejoin the party. They don't know where you reincarnated, and you don't even know who they are or that you're supposed to be helping them. Also, what happened to all your equipment?
Finally, (unless my memory has betrayed me) nothing in the description indicates how long it takes for a deva to reincarnate. It doesn't do you much good to have your character return with all their levels & feats if it takes you a decade to do so: the story's plot is probably not going to just sit on hold while you reincarnate.
TLDR: Only if you convince your DM to handwave away a lot of fluff issues.