i rode this frame (well the 657 but they are almost identical) and from this i found that;
really solid frame, hardly any flex at all
good for footjams and jibbing around on coping
as soon as you try to actually send it and go big its all over the place, it feels great until you get about 2 feet above coping then it all changes, the geometry pushes you forwards so you are over the front wheel more, which is good for footjams but it also causes you to nose dive EVERYTHING it really is hard to ride so the bad points are;
the standover is too low, it really doesn't help with anything, makes it really unstable and pushes you further over the front wheel the paint is really bad, mine was scuffed to the point of needing a repaint within about 10 sessions
also i couldnt spin that quick on it, even with the shorter rear end it was way slower than my tierra
good frame for jibbing about doing tech tricks but if you are the sort of guy who wants to send it at all or hit bigger stuff like big boxes, high airs ect its really good. too unstable because of the standover, bb height and rear end length which also leads to some appalling antihop at times and because its so out of balance it doesn't actually spin that fast, however it is strong and for technical mini ramp riding it is perfect.