Interesting about your first experience - I've found Nordic (especially their dev zone) to be pretty good - at least compared to ST! I haven't tried Renesas though :)
Also Nordic themselves seem quite interested/helpful when it comes to Espruino, which is always a bonus!
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
Interesting about your first experience - I've found Nordic (especially their dev zone) to be pretty good - at least compared to ST! I haven't tried Renesas though :)
Also Nordic themselves seem quite interested/helpful when it comes to Espruino, which is always a bonus!
The docs aren't great though I admit...