The SD EX-Standard is the latest in Bandai's revised SD model kits that has strangely appeared to Japanese builders only very recently. For everyone else, these SD EX-Standards have largely served their intended purpose well: killing some time and producing a fun kit to toy with at the end of the day.
Also, the stock Burning effect parts are pretty lame, being solid parts molded in the same red runner as the Try Burning's armor. An easy fix to this is to just use the effect parts bundled with the HGBF 1/144 Burning series of model kits (Building Burning, Try Burning, Kamiki Burning) - the flame swirls that plug into the backpack fit perfectly but the fist effect parts will need some additional modification. The HGBF clear orange effect parts give some more colour to the otherwise mundane kit and look so much better than the stock red ones.