I can remember only one issue where we had contacted technical support. We found out that there was a security setting that prevented access. However, I'm not absolutely sure if it was on the side of Heroku or on the destination.

It has to do with a firewall that prevented us from accessing a server from the United States. Ultimately, we configured it properly and everything was okay. What slowed us down was a lack of knowledge on our side. Once we were able to check with support, things were okay and we had no issues.

The technical support is very good. Usually we don't need to talk with them, but every time that we need it, they are very fast in their answers.

The technical support is pretty good. We haven't experienced many issues.

We don't need to talk to them a lot. Five years ago, we needed their help because we had a memory issue with an application, and they helped by email. The response was very good, but it was not as much on-time as phone support. Their support has improved since they have been acquired by Salesforce.

I have used the support a few times and my experience has been good.

The technical support isn't bad. The response time could be improved but I last contacted them some time ago when they were still using email and didn't have a direct chat option. It was either email or on a forum. It's probably improved since then. 

The doc is good, for nodejs at least. It is newbies friendly.

We didn't need to use the technical support.

So far very very poor. I'm considering switching to another platform for only this reason. How can a startup scale a business with such poor support. 5+ days no response to a valid ticket!

Horrible because they take forever to respond. Days with no response.