This is a provably false statement. There are thousands of companies running very serious things on Heroku handling load that would exceed the needs of the majority of audience here. All with near zero effort from a developer perspective.

They've also always been transparent about downtime, retrospectively creating/amending cases if required. The only multi-hour outages in the past 60 days afaict affected the ability to launch new processes & use the API but didn't actually cause downtime for apps that were already running (https://status.heroku.com/). That said, uptime for the past 60 days for the US region is > 4 nines, and EU is 5 nines. Better many ops teams achieve.

I was using rolling deploys (and preboot before that) on Heroku without issue back in 2013. I can't speak to the issues you had, but there were (is) a number of documented caveats to be aware of when using it.

You get all of that simply by doing `heroku create; git push heroku master`. Plus a broad range of automatically provisioned, configured, and fully-managed services you can use with a single click.

There's plenty of valid reasons to not use Heroku, claiming one if them is it's unsuitable for anything serious is disingenuous.