Congrats on the 1-1/2 smoke-free. Pretty awesome, isn't it? Way to go!
I am still pretty new to vaping myself, but I have recently upgraded from the CE4/iClear 16s (both top coil thingies) to a Mini ProTank 3. It has a certain elegance that I just love. However, I'll admit it - I was influenced by price. The MPT3 was half the price of the mini Nautilus at my local store. Nonetheless, I've been very pleased with how neat and tidy this tank is, and it looks great on a Spinner or VV V3. I will admit that I widened the air holes a bit with an eyeglass screwdriver to improve the draw. I'll note, too, that I have had no leaking, gurgling, or other weird perfomance issues with the Mini Protank.
However, I'm still wondering about the Mini Nautilus myself. Folks just love that thing!