A total Sleeper! Great Game!
I've owned the PSP since it came out and recently got the Vita. I've never heard of this game Gungir before I got the PSVita and found it browsing the online store. I thought, the name is bad but I looked it up online. Turns out it was a SRPG, much like FF Tactics. I bought the game, played it and was blown away! I seriously can't believe I never heard of this game before. I LOVE it!
My only drawback on the game is it's very linear. There is no grinding as you go from one battle on the map to the next. Unless things open up later (which it might, I'm still in the early stages).
The graphics are great. The story line is actually really good and it's kept my attention as I generally skip through the story in most games.
I'm not much of a review writer so I'll just say, I thought I've played almost every SRPG out there and this one is one of the best.