I got my GeekVape Zeus and so far I'm liking it! It's easy to build on, it might take a time or two to figure just how long to leave the legs for the postless deck, but it's a snap once you get it. I love the airflow, it has air from under and sides of the coil and is very smooth. Wicking is very easy, easier than the OBS Nano, I have the tails just below the deck. I wicked it right the first time out and haven't had any issues with flooding or spitting. I like the 810 drip tip, but didn't really like how they did the locking mechanism for the top cap. Condensation pools a bit in that mechanism which is at the base of the drip tip. I also wish they had recessed the fill ports.
Overall, I really like it, I haven't had any leaking or seeping. I think it has better flavor than my OBS Nano, and I like my Nano, I like the airflow better, it's easier to wick and looks nicer too.