lol, dunno if I should post this here or not, but according to Sakai blog.
http://ameblo.jp/sega-psblog/entry-11389192986.html
A lot of premium users displease about how little and useless addition that they are getting. (well it is common, I guess not many people care about having 20 SA slots). So I think that premium is bound to have another change in the future for the better. (may be those premium drink will stop the whining? )
List of what they request (from different person ideas, not all at once btw)
-some want rare drop boost campaign to be permanent and give 5x ticket every month.
-some want 10* trading room, in condition of same * rarity, same affix slot, and same element %. (I not get it.. why he want to force it as same element % only, that is hard!)
-some want premium member to get 20% of exp into sub-class they are using.
-some want little rare boost.
-some want 500 extra storage.
(anyway, just like here.. JP people are also very demanding, but I kind of agree that 1300/month need to get better than current)
On the different note: A lot of people has complained about 10* weapon should never drop as neutral element also.