Ok my thoughts about Sakura:
Stats:
She has the exact same stats as Mei with one exception. Speed. She is slow like a slug. 335 Speed is very slow. For some folks that might not be a problem however in my opinion her slow speed forces you to counterbalance her speed with another faster unit if you want balanced speed among your 4 teams. Therefore it could limit Team Building. I am sorry guys if i sound harsh but her low Speed is a big minus for me.
Normally i would give her an A here (same as Mei) but due to her low Speed i will give her B+ in that category.
Grading: B+
Skill Activation Chance and Skill Damage:
Same as Mei. Therefore she also gets an A here.
Grading: A
Abilities:
Increases Attack for party members by 22%. A little bit above Average. Solid, not amazing.
Increases Skill Activation Rate for party members up to 1.2x based on each member's affection. Always good to see this Ability. Nothing special anymore but good.
In a Boss fight, increases Attack for party members by 35%. Really Really good for Boss Battles on harder maps. However this Skill becomes absolutely useless for trash packs. Therefore it has a condition not like Mei's Crit Damage which works for all types of enemies. Boss or minion.
Increases Damage for party members against Bosses by 12%. Same as the Ability before. Really Nice for bosses. For Minions it's useless. 12% is a bit low however. For such a specialized Ability i would like to see a 20 % or even 25% Buff considering she only has 4 Abilities.
I don't know how i should feel about this section. She only has 4 Abilities. Two of them are solid but nothing special. The other two could be really really good or absolutely useless. Also 12 % Damage is a little bit low for my taste cause like i said if you have specialized Abilities you want them to be big in numbers.
Grading: I will give her B here.
Conclusion:
Sakura is a nice boss killer unit. However she is very slow and that could force specific Team Building. She is a specialized Unit which either performs excellent against bosses or mediocre against trash packs. Mei is a little bit better in my opinion. I just prefer that my Knights have Abilities which are usefull in almost all situations. Since i gave Mei an A- i will give Sakura a nice Solid B+. Not a must have but nice to have.
Final Verdict: B+