My take on vendor-specific toolchains in general:
* Fine for hobbyists , occasional users, and prototypes.
Second choice in a commercial environment, because:
* Silicon vendors use to lack the compiler/linker expertise. Toolchains are either bought up, leased, or freely available. A performance gap does exist.
* All-in-one often implies "all in one hand". Not everone likes that.
* This oolchains are limited to the company's product line. This does not fit for many customers.
* Longterm-availability, maintenance (bugfixes) and feature requests. What can you expect from a free product ?
* Licence and copyright issues.
Wich doesn't mean all this problems are present in STM32CubeIDE. But since it is based on TrueStudio (and Atollic) I wait to see.
Situations and occurences like observed with the Atollic take-over do usually fail to motivate the employees. The experienced key developers tend to disembark first.
