Update 2024 - spend is still unpredictable:
We've since spent some more time evaluating Datadog. The solution is great, almost everything we'd need integrated under one roof. However, there's still no predictability around spend. I asked them if I could pre-commit to a certain number of hosts, and the answer was " "Any additional host you bring on will be an additional charge." This doesn't work for me as I need a fixed infra budget, and I can't have Datadog charging for random hosts we boot up for 2 days.
The competitor I'm now using has a very reasonable pricing scheme: baseline platform fee with a certain number of hosts / units, then a flexible budget that can be shared across all features or a per-feature budget. When you get close to the budget you get a warning, then it's dropped. Super reasonable and straightforward.
Original 2023 review:
We could not fully evaluate DataDog because they charged us for 50 hosts inadvertently sending metrics for 2 days out of the month. This was our mistake - we accidentally deployed the DataDog agent to an entire tier, not realizing this would incur charges. We rolled this back when we discovered the issue. There appears to be no way of having DataDog drop metrics from agents. You have to physically remove those agents.
However, despite multiple conversations over the month with their sales team and support, explaining we did not want to monitor those hosts, they charged us for an entire month of usage.
The DataDog product looks great and we were excited to evaluate it. However, I now have to justify a month's worth of spend without getting value for it, which is an unfortunate place to be. Given the lack of support in helping us resolve this deployment mistake and the resulting billing issue, I also am not sure how much support I'd get down the road. Review collected by and hosted on G2.com.