I like the Creed a lot. It is a great tank with a few negatives. The top can be hard to remove if screwed on tight. I wish that the knurling was a little more easy to grip. That said, after using it for some time, it gets easier. I did say initially that the single coil insert was a PITA but it really is pretty simple to install. Let's just say that this user had some issues the first time.
I find if I use it as a dual coil, the flavor is best with the airflow cap that closes off additional airflow. In single coil, I like the airflow cap with the dot sized holes in the sides.
The o-rings are a bit tricky to change. On my very first Creed, it started seeping liquid from the area just above the airflow. I removed the o-ring and saw what I thought might be a problem so I installed one of the turquoise o-rings as it doesn't come with an extra opaque one for that part of the tank. The seeping started again so I don't know if the o-rings are the problem or if the tank is defective. Also, the replacement o-ring doesn't remain seated in the slot. It comes out when I take it apart to recoil or clean. I am deciding whether to send it to GeekVape for inspection or whether to have them just to send me a new set of o-rings. They offered both options when I contacted them.
I have three other Creed RTAs and enjoy using them in both single and dual coil mode. It is a matter of trying the different airflow caps to find out which one gives the best flavor for your juice. LOVE the capacity and love the performance. Best of all, o-ring issues aside, it doesn't leak!