The ease of use to set up our ELK stack for monitoring with real time alerts was outstanding! There really isn't anything I dislike about this product from experience so far!! If you are looking into using big data / analytic tools in your organization or even just learning how it benefits an enterprise then definitely give them consideration by considering their pricing plan options (there may be some free trial plans).
We were able monitor all logs which is very important but also provide custom dashboards that allow us see trends at various intervals allowing quick response times when we need something fixed fast if needed as well - helps keep track overall health/uptime across many servers running different applications within multiple environments while giving insights not possible otherwise like seeing what's going wrong right now etc.. Very helpful tool overall though sometimes can get bogged down during busy periods especially since its cloud hosted however they do offer support outside peak hours too via chat function available under each dashboard where someone will help answer questions quickly should one.