Hello there ELR!
I thought I might post a thought or two on the Hadaly clone I recently got. As some of you may have noticed, people have been raving about the Hadaly, it’s supposed to be a massive flavour machine, so I thought I might give it a go. Being in China and all, getting a clone is the most reasonable option. Even if you purchase authentic gear over here, you’re never sure it actually is the authentic one - and on top of that, you have to pay anywhere between 1.25 up to 3 times the original price. Enough rambling 
First off, the flavour is good. Is it that good? No. As with any atty that’s properly built (no massive, avoidable design flaws), you can get great flavour from it with the right build. I found the same applies to the NarDa, by the way, but you know - it’s new, it’s shiny and everyone says it’s the shit, especially after dropping that much money on it… The Hadaly is quite similar to the Narda, airflow from two sides, lower than the coil, going up and (relative to the coil size) condensed chamber.
Overall, the build quality is top notch, as was to be expected from SXK. The brushed finish is flawless, everything fits nicely together, no blemishes etc. But: the double o-rings on the base that hold the top cap in place are a tad too thick, which means that even with some liquid as lube it’s an Herculean act to get the cap all the way to the bottom.
The juice well is rather shallow, to me it looks like the Hadaly is meant for squonking and indeed, lo and behold, there is a bottom feeder pin included in the goodies bag! So far so good, I like that there are more and more RDA with squonker pins out of the box. So I switched the pin for the BF one and found a terminal flaw with this clone: the pin requires a pretty big allen key but there is no suitable Allen key included in the box. WTF?
After some fiddling with a regular screwdriver and some rubber in between to fill the void, that was solved. The other thing people have been raving about is how easily the Hadaly is built. This is attributed to its marvellous clamps… well, in my experience I found them to be highly dysfunctional. The side that’s meant to catch your wire is tapered and the area where there are two flat surfaces to press and hold your wire is actually pretty small. Considering that this atty is really power hungry, that seems like a design flaw to me. After some fiddling and unspeakable incantations to the Dark Lords of Coil Building, I managed to get my wires secured, though.
And lastly, the squonking. It’s meant for squonking, so this should be a dream, right? Nah. The airflow holes are rather low and horizontal, so it’s far too easy to over-squonk and get juice all over your mod. Happened once, now my Therion’s leather has a nice, black stain. Thanks a lot! After that I was more careful, had a few dry hits as a result. Yay.
And lastly, again like the Narda, if you don’t get the coil and wicking juuuuuust right, the Hadaly spits like a Llama. At that wattage you’re awarded for your troubles with a nice mouthful of hot juice.
So, all in all, maybe the original Hadaly is built from magical, “authenic” materials and gives off pure Nirwana as flavour (like the Matty ), but telling from the pictures and other reports these design flaws seem to be consistent with the original. So that’s definitely an authentic I’ll skip.
Nevertheless, it still looks the stuff, it’s a squonker (gotta love 'em) and it has great flavour with smooth airflow, so it’s not a complete waste. It’s just a bit flawed.
Cheers!
Mine is 22mm, don’t like 'em too big.
Who knows.