Ok, this is not a put down to anyone, just my way of viewing buying newer tech.
When I started looking at ebikes 3 years ago, I liked the Treks I saw but I really didn’t think the overall tech/support package was mature enough for me to spend that much money on. So I waited till May of last year to buy my Allant+7 and I’ve loved it from the moment I test drove it until present day.
Now I view Trek and Bosch‘s efforts with their controller family the same way. IMHO, the whole family needs to be matured…rethought and redone from scratch before I’d be interested in updating to any of them. The Purion needs to be updated with more data (that the PLCX motor already has available like cadence, etc.) seeable in the display. No need for customer programming at that level. The other’s just need to connect better and have more customer “programming/tuning” included with increasing capability as you go up the line.