The Atmos R2 is the dry herb and wax brother of the Atmos Optimus V2 (which is for wax). It has a great feel to it, and looks really nice. However, it's probably best to think of the R2 as a redesign vs a revolution on the Rx. It's the same basic principle, but with some nice new touches.
The first noticeable difference with the Atmos R2 is the look. It's sleeker and more unique than the vaporizer pens that have now become ubiquitous.
The new look also comes with more than just visual benefits. The battery fits a bit more comfortably in the hand, and the power button has been given a rehaul. Gone are the days of the rubber button (which some customers had complaints with). Now, there's a much sturdier plastic button which feel much better.
Speaking of the battery, it's also been given an upgrade. Like the Optimus V2, this battery is a bit longer lasting than the Rx, so you have more continuous power on a full charge. We'll have a more specific time-frame for you in the updates to this review.
Finally, and arguably, the most important revision is the heating chamber and heating coil. The buzz word is that this is anodized. That's a fancy term, but to translate the benefits: more durable, less susceptible to corrosion, and improved taste.
Aside from these benefits, the heating coil also gets much hotter than the Rx and Junior models. This level of heat allows it to truly burn through all the herbs you pack into the chamber. And that's good, because the chamber is also a bit larger. No more "packing a pinch" for best hits. The heating coil will eagerly tear through your herbs.
This truly is the never-ending battle with "vape" pens. For herbs, many pens will combust your herbs using them they way they come out-of-the-box. Unless you place some sort of buffer between the herbs and the heating coils, you'll combust and not vaporize them. This is as true with the R2 as it was with the Rx and Junior.
Our recommendation is to use glass screen filters. However, since the chamber is larger, you'll need a larger glass screen than the standard size found at most sites. Of course, we have larger glass screens here and include them with your R2, so no worries! You'll also need to use metal mesh filters in conjunction with the glass screen to truly prevent combustion and produce vapor. Again, we have you covered.
Requires custom-fitted glass screen filters (and, possibly, metal mesh screens)
Tip: When you heat the chamber for the first time, try taking a hit. If you immediately get smoke, note that this is NOT vapor. Some herbs probably fell onto the heating coil (vapor takes much longer to cook up, so immediate smoke is not vapor). Either take hits until the herbs on the coil are all spent, or heating the chamber and re-pack more carefully.
Say it with me: click the power button fives times rapidly to turn the device on and off. Some things never change. Also, we still recommend removing the spring from the mouthpiece to get better hits. Cramming herbs right up next to the heating coil actually doesn't help much. It limits the amount of smoke, and makes a bigger mess inside of the chamber. However, because the heating coils are now hotter, you'll still be able to get good hits regardless of whether you keep the spring in or out.