What stack is better for this case?

I have expirience in LAMP stack, I'm gonna use Yii2 for REST API and AngularJS for frontend.

Project needs to update some data in real time as well as Trello does for card commenting creating and commenting and browser notifications as well.

As I know Trello uses node.js and sockets for real time updating.

So I see two ways to implement it, inclunding pros and cons:

1. Use known stack (Yii2 / AngularJS) to implement base functionality and use nodejs/comet for notifications and real time updates as power up.

2. Spend some time studying node.js / find node.js coder and develop all the functionality on node.js.

Can you please help me to choose? What advantages has every approach? What do you prefer as alternative?

via indeveler