I've been using the Siren 25 for more than 2 weeks daily and, so far, it's been a great
tank!
I'm new to
vaping (I dropped the analogic cigs a month ago) and definitely a newbie in rbas but with this atomizer I had almost 0 problems ( I figured out the proper wicking after the first rigen which flooded a bit the air intake).
The issues I found are the ones already mentioned by other users in the thread, although the one that I find more annoying is the air holes... there should definitely be a smaller one for a tight draw!
The only thing that I'm not sure about is the flavor: I use a kantal 30ga, 5 spires, 3mm ID for a 2.13 ohm at the moment and I tried other setups (and never gone sub-ohm). Now, the flavor is not bad, but I was wondering if I could get some more of it using a better setup!
Regarding availability, for the fellows that are in Europe (I'm Italian) I can say that it seems the 25 siren is still easily found; not so much for the 22 which was my first choice before realizing how hard is it to find that one!
I can say that the 25 version looks still pretty good on my evic mini vtwo!