Here goes:

1. Daily Spending Rebate
I'm not a spender. Can't say much.

2. Sage Treasure
I really liked this event previously. Its solid and should be rotated in frequently. Though getting keys are a bit tricky sometimes. It just wont drop on occasion XD. 9/10

3. Missions General Mobilization
This is the MVP of events! It encourages community and activity, rewards well with generously priced redeemable items. Really, the redeemable items are that good that i wish I could get them all. Have this and Lucky board on regular rotation. Me and a friends always look forward to sending each other missions. Very much appreciated. 10/10

4. Daily Special
Making discount coupons more available is much appreciated. We thank you for listening. I think many have asked that you make the ninjas available visible for all days. That would be nice too. Though I can understand that part of the uniqueness of the event is from not knowing what could be on offer next and its cool. Maybe make the first 3 days visible? and the rest a surprise. But of course let the surprise be good. I remember waiting with my coupons and discount for the very last day and ended up disappointed because it was beheading kakashi. But overall a nice event and much appreciated improvements so far. 8/10

5&6 Summon Rebates + Recruitment Feedback
This should be forever in rotation together with all rebate events (keys, refine, BA). I personally don't mind timing because i think that's the idea of it as long as they are in regular rotation. Save and be patient and be rewarded. Although summon rebate is a bit special because the monthly events demand that we pull them. So at least for summon rebate make it possible to coincide with those events like now. 10/10

7. Sakura Festival
A nice okay event. Medium and not low refines! yay! thanks! I do feel however its lacking something. The sakura blessing does nothing in particular. So nothing very memorable. Maybe if you get the sakura blessing we get a free sailor sakura transform? Would make it more fun haha. Do consider treasure keys, and mood scrolls over dangos and bbq. It would make the event solid. Right now maybe 6/10. Nothing bad but nothing great either. Definitely could be more interactive and fun.

8. Time-Limited Shop
Nothing particularly exciting. Maybe because I wont buy these things with coupons. But serves its purpose for some. In addition to the items, maybe also put one really crazy bargain such that its a must buy. Something like 45 coupons 1 seal scroll - limited 1 purchase. It would at least get people's attention. Also consider kimono frags haha. 7/10