Coming from Eurogamer...
One developer working on a key AAA franchise port told us anonymously that the Nintendo toolchain is "fighting us every step of the way", suggesting that plenty of work still needs to be done in getting development workflow up to scratch.
This is pretty much the first time we've heard anything like this from a third party dev. Now that the system is out, I'm guessing we'll be hearing the more ugly comments from devs. They'll remain anonymous, of course!