Anyone host on Heroku? Firebase? AWS?

I'm interested in hosting on Heroku as I would prefer having a PaaS over one of the shared hosts and don't have the time to manage a server myself. However, I have heard that Heroku has a 100 mb directory limit, and that you often need at least more than one dyno for any reasonable app due to sleeping.

Anyone have experience with this? I don't see any docs for hosting on Firebase so not sure if that's even an option.

Thanks!

As far as I know, Firebase is a backend for mobile apps, not really a public facing web server PaaS.

Thanks for the response. I know you can host static sites on Firebase now. Bumping to see if anyone has used Heroku, specifically!