OK, so here's the deal.
I bought a Summit three weeks ago. Last spring (northern hemisphere) I was torn between the Pax 2 and the Summit for my next suppression device for uncontrollable VAS.
What I say below is just my personal impressions, based on my personal preferences, based on my personal desires/ needs.
You may disagree, but you are not me. / end disclaimer
I decided on the Pax 2. I do not regret the purchase. It is a solid vape, with few downsides. The only dissatisfaction I have is the charging system. It is stoopid, and unnecessarily clumsy.
Based on reviews here, especially the seasoned, well reasoning OF, and The Vape Critic, I decided to purchase the Summit. Why? Because VAS.
I find the Summit exceeds my personal needs, compared to the Pax 2, in every way except stealthiness and battery longevity.
Stealthiness is not a major problem, I am fortunate to reside in a legal recreational State, so if I need stealth, I use a pre filled oil cartridge. Yes, it is good to live in a recreational State.
Why is the Summit less stealthy than the Pax 2? Because the Summit is very odorous. Again that is not a major problem for me. I will be spending Thanksgiving (USA) with less cannabis friendly relatives. So I will use edibles and cartridges. (Yes, it is wonderful to live in a recreational State).
Then there is battery life. The Summit, as has been stated before, has battery longevity problems, not entirely mitigated by pass-through charging. I hope Vapium addresses this issue with a new model.
That is the cons.
For the pros... this thing hits like a beast! The only vape comparable in my arsenal is the original Flowrrmate V. It is a vapor chimney. I feel it runs a little hot, so I start at level 3, and work my way up. Flavor is very adequate, and I end, unless I am feeling greedy, at level 6.
Also, personal tolerance, I find I can use very small amounts, packed snug, and still get satisfying performance.
I love this thing!
I hope Vapium can address the battery longevity issues, because otherwise, it is close to flawless. For my personal requirements.