I built my app (Show HN at https://news.ycombinator.com/item?id=43483919 ) using Cloudflare for various functions. They seem to nail the services a typical SaaS needs (except email service), but localhost development can be challenging for some newer services.

Also, their Queues service seems to get stuck randomly, and I need to "flush" it manually from the dashboard.

But I hope they get better over time. Can't beat the ease of use and the pricing.