[foolofatom]

I've been using https://tsed.io/ with great success.

[zumu]

I've been out of the JS/TS world for a couple years. Are decorators everywhere now? I will be very sad if so.

[pas]

TSed has a great dependency injection system, and uses decorators for a few things, I did not find its use excessive.

[mssundaram]

My experience is only n=3 but I've only rarely seen them where I've worked over the past 5 years. The only sane use case I've seen was for tagging logs and metrics.