I found this to be an okay martial arts movie but nothing particularly special and there is so much better out there. However, if you've seen the best of the rest and you're looking for something to pass an hour and a half, having nothing better to do. Then maybe this film is the you? If you're expecting something with top quality Thai Martial arts action along the lines of Ong Bak, Warrior King, Born to Fight or even Bangkok Adrenaline then maybe you should look elsewhere.
There's nothing that you haven't seen in any of those movies before and done much better. What action there is is tightly framed and it feels like you're too close to the action to actually appreciate it. Shaky camerawork and fast cut editing doesn't help things either. The movie is filled with stunts and fight action and yet again there is nothing outstanding... Although it does surpass what passes for action in Hollywood these days. I also didn't think any of the fights were particularly good and perhaps with a bit more effort this movie could have been more worthwhile.
The story is simple and the acting is passable but I suspect the only reason you're going to watch this is for the action.
Anyway my verdict is catch it on TV should it ever be shown, rent it all buy it extremely cheaply. There are so many better movies you could pick up from Amazon, so the choice is yours.