OK so I have the caviar edition.
First impressions. I can't think of any other RDA which comes with a white, ultem, black and SS cap, a full complement of beauty rings and wide and narrow drip tips in each material. Any other RDA I have means a chase to get all of the accesories and those would cost more than I paid for this.
It has a postless deck which works well but, for me it is a chore which is not needed being postless, the material is there that you could connect the coil as you do on the Hakus or the Solo.
it is seriously airy.
The machining of the deck is good, the caps aren't the best quality but see earlier comment about price.
If you like an airy vape it's a good RDA, but for me I can;t see it keeping a place in my normal rotation. The reason I bought it was I have a white deltin phobic coming, and this was an easy way to get an RDA witha white cap, I suppose I'll keep looking
23mm - why?
In summary, it's good for what it is, but squonking has made me favour restricted lung hit RDAs for flavour chasing and that isn't what this is.
Hope that helps