Fortigate appliance and ELK syslog server

Elastic Stack Logstash
1

Scenario: I want to create a syslog server for CISCO‌ SW and Fortigate Firewall, I configured my FG to send log to ELK server. I tested with tcpdump and data recieved on the given port.
I found two way and I don't know choose the correct way:

  1. fortinet module in kibana
  2. This guide: GitHub - enotspe/fortinet-2-elasticsearch: Fortinet products logs to Elasticsearch

Which one is better and why? And if you have a recommenedation you make me happy.....
UPDATE‌:
By the way, deep of log is very impportant.