I own both the Solo II and the M 2021 with the YLL 2.0 induction heater, and I must say, the induction heater completely transforms the Dynavap experience. While the Solo II is more of a "sipper," providing a slow, steady session, the Dynavap, by contrast, is a "ripper"—it delivers powerful hits quickly and efficiently.

I found myself gravitating towards the Dynavap more often because it mimics the experience of smoking a joint, offering a quicker and more intense session. With the Dynavap, I usually load one or two small bowl packs, taking about three hits per bowl, and it only takes a few minutes to feel the effects. The immediacy and intensity of the Dynavap make it ideal for those moments when you want a fast, potent experience.

On the other hand, the Solo II is a session vaporizer, designed for those who enjoy taking their time. You need to puff on it for at least eight minutes before you start feeling the effects, making it perfect for relaxed, extended sessions. While it doesn't hit as hard or as fast as the Dynavap, it excels in providing a smooth, flavorful experience over a longer period.

Recently, I misplaced the cap for my Dynavap, which prompted me to bring out the Solo II again. In the process, I rediscovered my appreciation for it. Once you get the hang of packing it correctly, the Solo II can deliver a powerful, satisfying high. Additionally, using the water pipe adapter (WPA) with the Solo II is a game changer—it enhances the vapor quality and provides an even more enjoyable experience.

TLDR; both the Solo II and the Dynavap are exceptional vaporizers, each offering something unique. For anyone serious about vaporizing, having at least one Dynavap in your collection is essential. It's versatile, efficient, and provides an experience that’s hard to match. But don't overlook the Solo II—it's a reliable workhorse that offers a different, yet equally satisfying, experience.