I recently started a small SASS project for a client and decided that Heroku would be a good fit for the situation. That led me to use smaller independent service providers like Mailgun for email, Mapbox for maps, Transloadit for video encoding. I haven't needed much support but when I have I actually talk to real people (and developers on the other end). It's a very pleasant experience. I get much more of a feeling that they actually care about developers using their products. Plus it feels "good" to be supporting independent shops, instead of giant tech monoliths.
Consolidated billing can be annoying if you decide to go with many smaller, independent providers. At least Heroku covers that well.