A solid tutorial about logStash/ElasticSearch?

Hello all.

I am looking to install LogStash/ElasticSearch. However, can you point me to a tutorial that has instructions that are for the most reliable?

This link below looks good but just wanted to get some pointers before I start this little project that may take several hours from my time.

https://www.digitalocean.com/community/tutorials/how-to-use-logstash-and-kibana-to-centralize-logs-on-centos-6