I can't agree more. I've used every main 'competitor' now and nothing can compare to splunk for hunting across massive logging pools. It genuinely feels like magic with advanced SPL and solid regex.
My frustrations with Splunk have been around their certification and training changes over the years. Used to be able to get a solid tool certificate and decent training materials all for free. It only hurts Splunk though as less people have experience with the tool it lessens their advantage. Makes me disappointed as I really do like the tools itself but literally everything else is terrible. I'd much rather deal with Elastic or go open source with Security Onion.