In this blog post I would like to point out all those limits, and as developers you will probably understand our problems. Basically project was working quite fine while we were building the system. We had quite experienced developers working on the platform (like we always do with new technologies), the code was well organized, and performances were taken into consideration since we already produced lots of apps which expect heavy load. But once we started to do stress testing before delivery, lots of problems occurred, and they were nowhere (or really hard) to be found in the docs:

Source: List of Parse SDK limits, downsides of Parse from experience | Profico