I'm a medical user, and have a VapeExhale Cloud for a desk top, a Solo for semi-portable, and a T1. The T1 just died, so I'm looking for a replacement. I use only dry herb. My priorities are: healthiest (e.g., low risk of something suspect in the air path); pocket size and discreet form; decent battery power; and low fuss. For background (in case it helps at all), I'm mention the following. I've had log vapes, which are great, although the charring in the PD made me cautious. I got the VapeEx more for its clean vapor that for huge clouds. (I have a Volcano, but rarely use it.) The Solo is great, but I'm looking for something more portable, and I don't like how dirty the stems get and that they are not readily portable when still filled. I liked the T1, and have appreciated its size and form, but it died a few times, the "screen" gets clogged, and the battery strength is outdated. Many thanks for your suggestions. Happy to answer questions.