I'm considering the same for https://pwpush.com. Currently on paid Heroku ($59/month) with a lot of traffic.
DO App Platform is better than last year but still a bit quirky. I haven't found a better alternative that is more 1) mature, 2) reliable, 3) paid/supported, 4) enough features.
DO App Platform is better than last year but still a bit quirky. I haven't found a better alternative that is more 1) mature, 2) reliable, 3) paid/supported, 4) enough features.