Well, I had the Unity for a while, it was lent to me by a friend. It's a great atty (just a bit on the ugly side IMO, but that's totally subjective), very flavorful. Also, contrary to many, I found it extremely easy to wick. Out of the box, I liked the Unity more than the Zeus. For some reason, the Zeus with the stock mesh just didn't work for me. Ever since I modified the deck of the Zeus and started using NexMesh on it though, it has been great. Flavor is similar, if not a bit better on the Zeus (although they worked differently with different juices, desserts and cookie including flavors I liked better on the Zeus, fruits on the Unity), but what I didn't like about the Unity is that the vape was extremely cool even at wattages that are too high for mesh. I pushed 80W through the thing, still a very cool vape. The Zeus does warm a bit at higher wattages and I use it at 60-70W no problem. I also got a Steam Crave Aromamizer Supreme v3 recently and it came with a mesh deck. Not a fan of it. Doesn't hold a candle to the Zeus or the Unity. Nor does it to itself using the single or postless decks. It's a great atty, just not for mesh. At least with the provided strips, I haven't tried NexMesh on it.