Previously I did prefer Mega, but there can be issues like the transfer limit which is simply bad to have when larger files are due, or the fact that it downloads in advance before you even get the prompt to save the file when you download from the browser. Other things like Google Drive are not always available as an option. On top of that not all alternative options are as appealing, for example Zippyshare is not even available in my country, and I am often vary about sites unknown to me (even though the options on this site should be safe as per rules).
Nopy appeared as a new option at some point and I got quickly fond of it, especially quick small downloads through the browser were nice to have and I started to prefer it over Mega. One thing I heavily preferred over other sites is that it was free but also wasn't full of ads, overall a simple design, still besides the unrestricted downloads for me. In the past weeks or so I already experienced issues with the downloads from Nopy, and the message confirms why it happened, which is quite sad to hear.