Better than zmail and twilight but downgrade from fulad-zereh and possibly the meebles body.
So lets compare kers to the last two he mentioned, the fulad and the one from meebles.
Kers: STR+13 DEX+13 ACC.+15 ATT.+15 SB+5 Haste+4
Fulad-Zereh: STR+15 DEX+15 ACC+15 ATT+15 Evad-15 DA+3
Grandoynes Mail: STR+12 DEX+12 ATT+19 Crit Rate+2 Haste+3
I like the last one even tho your losing 1 str and dex you get 4 more attack and +2 crit hit rate and we all know cdc is crit based. But to get that one you need to complete meebles and spend 100k research marks.
Fulad drops from Legion. If you have Kers I would keep it until you get one of the others if you feel like it. Good luck!