Something had to lead me to this thead...
The one thing I will say about how I like to review products is that I believe I test my products in a very controlled manner for what "newbies" can do. Every time I get a new device, I test multiple heads, using multiple juices, using multiple voltages, using multiple draw techniques, using multiple air-flow settings, using a couple different batteries, filling at a couple different levels, washing the tanks and heads with distilled water multiple times, and so on. What I don't do is rebuild coils and I've been very open about that, as I stated in my first post here that I do reviews for "newbie" vapers who won't know how to rebuild nor will keep to vaping long enough to dedicate themselves to that road. Just so happens that I've never rebuilt a coil, so I'm sure that plays in there somewhere.
And that's why I do my "reviews". I want newer users to know that even in the most controlled of environments, I have gotten major problems (mostly burned or dry tasting hits) across a span of interchangeable head devices. I'm the person who wants to sit there and say that, chances are, either you're doing something wrong that you'll probably figure out in a couple days, or that really, you had the bad luck of getting a bunch of bad heads that, in the same situation, I absolutely could not improve, with the absolute curse of having this happen on as many as 10 heads in a row. For those who want to insult me for that experience, sure, it sounds unrealistic, but so does bad grammar, and you don't see me attacking this entire forum for that.
My advice? Right now, I have none. After already being a member for months, and trolling years longer than that, I still don't have one solid technique to tell people that actually makes a real difference. The best I can say, and hey, this goes against me too, is don't ever listen to a review unless there's not one bad one. If there's a review or post where a person came across a bunk head, even just 1 out of 100, then in my opinion, there's a good chance you'll end up getting a set of the factory's rejects just by luck of the draw. This applies because I haven't seen one bad word about Cisco's brand and so far, it's been the only atomizer to work properly for me. That sort of seems to be more than a coincidence, and that's all I can advise.
When it comes down to it, the areas I don't have experience in are carto-tanks and RBA's. To me, both types are sort of beyond an entry level vape, with carto-tanks being sort of the midline. To me, these are the levels of vaping that a person really needs a good vaping buddy or a very knowledgeable, patient vendor employee to help them get the best out of the experience. I don't have that in my town, so that's where my experience level in that has fallen flat. Yet, of coarse, the thing that makes me look bad is that I couldn't recommend one replaceable-head device, I really do hate them. I was never the person who thought I'd end up going through devices like packs of cigarettes - whenever I'd vape on a vendor's CE4-style juice sampler, it always tasted clean, and good enough for me.
Coming home with my own version of the device has been an entirely different story. I've been very quick to say that sometimes I even believe vendors use the actual brand name CE4's for sample testing, and sell clones that are meant to look identical to the samplers, all in an effort to snag customers yet save money.
That's how badly the same products work when I buy them, and use them the same way the vendor did. Didn't help that virtually every customer that came in at the various times I was at the shop was complaining about the same issue (or else was saying, "Omg, I love my vaping device, I've been using the same head for 3 months and it still tastes great, haven't washed it once or anything!" - No, they just have a tongue that couldn't taste a pile of hot feces.)
Chances are, it was probably just down to the fact that the specific CE4's were largely faulty and that the vendor themselves had the ability to sit down and go through 5 heads at a time until one of them worked well enough for the customer sample, but either way, when spending $3-$5 on a head for even the cheapest of clearomizers, it doesn't make me too happy. Has been the exact same way with the Protank II, the Aspire, the iClear 30, the Aro Tank, list goes on. I received a truly working vape with my recent Cisco atomizer, and I'm using that as my personal reference point to advise which products really work and which ones taste like a scam. I'd rather a juice taste like Spam than a device where the coil is wrapped in a way that prevents wicking.