SoftwareSerial: IS reliable ?

Good Afternoon, I'm evaluating a project where I'm using one Arduino Mega 2560 and from the other side ArduinoUno.

I need to send out message between arduino and i need to debug it to the console ... for sure using 2 Arduino Mega i can use second hardware serial ... but I would like to know if is possible use SoftwareSerial and if it is stable to use ...

thanks Gnux

but I would like to know if is possible use SoftwareSerial and if it is stable to use

Yes and yes, at appropriate speeds, for appropriate amounts of data, with the appropriate awareness of the impacts.