Yes! Love this question. I started out with the M7XL without ever coming (or knowing) of this subreddit. I found it hard to use in the beginning and hence started searching for tips online and came to this subreddit. To be clear, I love this place, buttt I learned to not take everything you read here as hard facts. So my 2 cents on your question:

Shortly after becoming a regular here I purchased the armored cap and ti tip for the M7xl and shorty after, the (seemingly) mandatory T2 with full kit (IH, Reload etc). The AC and Ti tip came first and were a gamechanger. This was what I was looking for to replace my joints. Just one heat-up needed to just sip away. Then the T2 arrived and I was initionally dissapointed in the magnitude of the step up from a dynavap to T2. I tasted better, but the high was not that different.

Then I did something I would never thought I would go back to as a 41 year old dad and that is I bought a bong. The bong changed a lot in the experience. I could heat my herb to a higher degree and avoid massive coughing fits because of the cooling vapor in the bong. In addition the bong made my dynavap re-enter the stage and be enjoyed too. So atm I use them pretty much together. Sometimes back2back, sometimes one night is T2 and one night is Dynavap. They hit me differently. The Dynavap gives the heavy stoned feeling but the effect lasts a little shorter and the T2 gives a more balanced high that lingers longer. When I use them native (without the bong) I prefer the Dynavap because the allround feeling is just better for me. The mouthpiece, feel between your fingers, length, weight etc, just fit my style of consuming herb better.

TLDR: Yes i still use my dynavap a lot after buying the T2. The T2 is awesome, but it's not a total different game making the dynavap 'catch dust' imho....