Excalibrate,
I'm still waiting for my first pv device to arrive. It happens I chose a Zmax and it will be coming with a clearo, but I've also ordered a pyrex tank and a vivi nova kit. Your experience is the one I've worried I will have... that I will not be able to get things to work satisfactorily and that I'll be very disappointed.
The thing is, while I worry about disappointment, I know that my experience will depend on doing everything i can to educate myself about every component to these devices, and the more variables I can unearth, the better. As Oxygen Thief has advised, while I've been waiting for my orders to arrive, I've been watching youtube videos about every piece of equipment I've ordered.
I'm a visual learner, so it's been hugely helpful to see a tank or clearo or vivi taken apart, cleaned and even how to replace the wicks and coils. I've watched different people's videosfor the exact same things to verify and doublecheck the steps involved.
As a result, I think I'm prepared to setup and maintain my Zmax... I'm actually pretty excited to get my hands on my stuff! If things go wrong, I've seen the steps that all of those video tutors took to get back on track, so I know I have options and things to try.
Please do take some time to search for videos that support how your CE4, vivi, carto and AGA T are working for you. They really are the key elements. I hope you won't give up and that you'll be able to move from disappointment to satisfaction... and even fun, when it comes to vaping. Then post and let noobs like me know what you did to make your situation better!
Good luck to you!