[rdubz]

post author here, this is good perspective, thanks.

* The "<++=" operators are much-maligned but I've seen them ~0 times in 6 months; I may have come in to SBT-land just as they were being finally phased out, I think I did see them in the beginning a bit.

* Agreed that the recursiveness of the build is presented somewhat confusingly and navel-gazingly!

* Speed-wise, I imagine you're talking about reloading projects, either in the SBT CLI or IntelliJ? That's pretty fair, I've had to adjust my IJ workflow a bit to not trigger full-project-refreshes as often (e.g. disabling auto-import). If you're talking about e.g. compilation or other tasks being slow, I'd be surprised and interested to hear more, though.

* re: SBT plugins being stuck on 2.10, I was also a bit daunted to read that early on, but at this point I've written several SBT plugins and it's basically never been an issue or introduced any friction; curious to hear if it's caused problems for you.

* Agreed that there is a steep learning curve and some payoff that reasonable people may value differently, and also to not write a build system :)