1st i have 2 things need to say:
Im not Eng teacher so that i cant type exacly eng grammar or word, sorry 
The job i played were swordman, cleric.
Effect:
In game, having some effects what i want to turn off but at setting doesnt have like: shaking screen, red theme when low hp, effect skill.
I know it makes game more interesting but when i play with that at long time, it makes me get headache, eye pain.
[Suggest] I hope i can turn off them at next test.
Attributes:
Some skill have some attributes can turn on/off but i cant put them on hotkey bar.
whenever i need turn on/off attributes i need do many thing for that: f3 for turn on skill table, chose job, scroll down, find attributes and turn on/off. See, it waste so much time.
[Suggest] Attributes on/off can put on hotkey bar.
Mouse mode vs keyboard mode:
Choosing target is simple with ranger job like archer n wizard when using mouse mode but its very hard with melee when using ranger skill.
Example:
Long Stride(Hoplite) and Throwing Spear(Hoplite) will atk chosen target, but what happen when the target who i need go into crowd of people,monster. Yeah, ez losing target.
Shield Lob (Peltasta), Iron Hook (Corsair), Giant Swing (Barbarian).Trust me, there have only 2 things we can hit with this skill : monsters n people who keep standing.
So do i need change mouse mode when i use ranger skill? ESC> setting> mouse mode > ESC, after used ranger skill ESC> setting > keyboard mode. Keep playing melee target with mouse mode will make i hit monster very hardly.
I tried use Ctrl for lock target but it need we go close target 1st and there havent anything npc or monster near that
[Suggest] We can lock target with mouse( just double click on them) even we playing with keyboard mode, circle skill like Iron hook is appear at chosen target instead in front of us.
Useless skill:
Some skill we need 1 point, some need max asap but some skill we never use whatever pvp
or pve. Only 1 thing we learn n use that skill is show off.
Example:
Shield Lob (Peltasta) : hard to use, bad animator, poor dmg. AH, losing effect from shield.
Embowel (Barbarian) : look like we use 2 bash (Swordsman), having more dmg but aoe smaller.
Giant Swing (Barbarian) : excellent for show off. ONLY for show off.
[Suggest] Remake, remove or balance
Information skill:
How many hit when we use that skill ? How many percent stun when we use that skill ? and so many questions in my head when i read infomation skill at skill table in game. I can only know when i learned that skill or search google,forum.
[Suggest] Information skill have number info ( 1,2,3,25) instead word info ( may, have chance)
OK, this is all thing i just want to say, i love this game n i hope IMC will make game better n better in future 