After having a green Ti for a week or so now, it's been a plus and a minus.
The pluses are all that everyone have listed- build quality, heat up time, shape factor, discreetness.
Negatives. Vapor quality and taste are on par with a mflb. It's hit or miss and I've settled on a heat setting of 4. Sometimes a wisp, sometimes some clouds. Most of the time I'm wondering if it's working or if I tried it just "right". A lot depends on how long, how strong you pull. A lot. And then on the grind and how you load. I just can't get any consistency. So, a lot of variables to deal with.
More than once, I've reverted and reluctantly back to the pax2. Because it is consistent, on whole, no matter what the pull, length of pull. Though it does like a packed chamber. Which is easy to do.
Hate to say this, but the GH is sort of a refined atmos raw imo. No less. A bit more.