Hi Dmitry. This is an expensive solution for this scale. But, ZeeMee’s traffic is really cyclical, so we only have to run it in “really expensive” mode for a few days of the year (application deadlines). This article might even help you decide at which scale you’d want to move to a new solution.

Rails+Heroku is an easy way to get a product off the ground quickly, give you the flexibility to scale up as your traffic grows, and we’ll switch off of it when (cost to switch) < (cost to continue).