I did not like Joker 2 all that much. I actually kept a small record on paper, and the rate at which you scout even in the high 90s percentile was outright dumb: WAY too many "failed to scouts". Joker 1 was perfectly balanced and fun. I got sick of Joker 2. I wish we'd gotten pro for the extra storyline, but frankly my opinion of this game is not high at all.
I'll announce this on my pages, but on this board I will add: if this ever came stateside I'd likely buy it only to boost DQ sales. I would go in cautiously. Who knows, maybe it has returned to the balanced ways of the first one.