Quick overview of Samjok, Kirin, Gangil, and etc.
Samjok: Definitely not meta. The Meta is still dominated by Dux, Condor, and Raptor. I am not sure it's top 5, and possibly not top 10. It is the most balanced bot released since Pathfinder, and before that maybe..... Imugi. So there can be sigh of relief from The People. It does not mean that the bot is necessarily easy to manage, and it does not mean that it can't be effective. The skill cap is VERY high, and that means 90% of people won't use it (shade intentionally thrown). However, those with the Strength of Will to use it, will find that is if fun in the same way other saboteur and disruptor bots. It has a similar feel to Imugi, Skyros, and Phantom, in that in can cause a lot of headaches. It is very fast, and I have been using it to attack the back line and assassinate campers and other annoying bots. Occasionally I can steal a beacon or two too. It's ability allows it to get out of danger, and just cause general havoc. However, as I mentioned about skill cap, ability management is both difficult and required. It does not last long out of ability, and keeping it alive can be tricky in a battle without caution. About the turret: Like most turrets, will probably cause more headaches in the lower leagues than higher leagues. It is strong, and effective, but not as strong as Curie on release. Additionally, it seems to respect targeting, meaning if you keep an enemy in your reticle, it will target that enemy more often than not. I think defensive drones are the way to go to keep it alive longer out of ability (Shai, Pascal, Seeker).
Chongue: Is OK, but the healing isn't strong enough to keep Samjok healed between its phase shifts. The speed does seem to work on Ravana, which is nice, and presumably Angler (haven't tested it yet). I need to pay attention to see whether or not the healing affects Ravana (i.e. check the next time I play). If I confirm, it might be the best drone for Ravana and presumably Angler.
Gagil/Mogwan/Kirin: Extremely strong inside of 100m and falls off hard past that. The need to be used in a similar way to Tesla Weapons. As such, they're not good on anything that can't get close. However, they're very good on things that can. I have tested it on ole' reliable Ravana, and they're awesome. I suspect they might become the new meta build for Raptor. Other bots worth considering: Skyros, Loki, Phantom, Shell, Angler, Shenlou and a few others.