You can charge devices with thick cases (such as Otter box) with this power station. But you might NOT be able to stand them up in the slot if the case is very thick. You can simply lie them down next to the station on the table.
This charging station comes with a space-conscious design, and got German Red Dot Award in 2014. You can not move the slots, unfortunately. But you can change the colour and you can wash them with water anytime.
We do have a Bamboo charging station now which is MUCH bigger in size as well as power.