For me the most troubling part about my favourite classes are which Skills got removed and which are in my opinion poor with less effort designed.

SAM : Shoha is a very cool looking skill but exactly this only one skill i like about sam in its animation design, is that one that is even less useful than seigan so you never get to use it and this makes you not being able to see and enjoy the skill.
Secondly his 76 Skill, allowing using an Iaijutsu twice : Its just the same recycled animation. not an visual change which is very sad considering other jobs with an powered up version of their skill get always a new cool looking flashy design.

So in total samurai got 1 cool looking skill (which you cant really use) and 1 skill that use the exact same visual animation of the older version which is very sad. at least change the color if you are too lazy to change the animation xD

DRK : First they removed Delirium (the HS level 50 combo finisher) & Scourge and now they removed Power Slash. All his flashy looking skills are removed and Soul Eater is not an bad skill but spaming it all the time gets very boring. the animation is not satisfying enough for an skill you have to watch with your eyes for years now. I miss old Dark Knight (with his animations. his current gameplay is much better. just talking about the animations)

But on the other hand i also like the new skills from DRK and i like that you get to see his 2 Blood Skills more now. (sorry dont know english names)

so gameplay wise i like the changes alot but graphically from the animation design aspect im very sad and dissapointed.