Finally got this game myself since it is on sale again. Controls well enough after you get used to it - I also had to increase vertical sensitivity quite a little (I also miss the gyro aim but it's not bad now).
Anyway, the game looks and plays great, been picking up the vita constantly to play some missions. Shame I didn't pick it up earlier, must have been the demo and the reports of crashing that put me off way back when it came out. Anyway, a steal! Don't miss it in the sale, especially if you've been craving a shooter on the Vita.
-It lets you know if the mission is long/medium/short btw.
Loving the focus on stealth in some of these missions too, shame it never got DLC or really caught on.