What do you like best?
ORCL ELQ's framework is flexible enough that there are many ways to accomplish things. The solution is scalable; I've used it in several organizations and have yet found a way to stump it or outgrow its capabilities.
What do you dislike?
ELQ is far from plug-and-play. It requires a lot of care and feeding and some orgs underestimate the amount of time required to keep things running smoothly. Some of its "old framework" architecture can be a bit clunky (i.e., Program Builder), but they are making great strides in modernizing with things like Program Canvas.
Recommendations to others considering the product
Do your homework when evaluating marketing automation platforms and be realistic in your expectations and capabilities. If all you're planning to do is automate batch-and-blast emails, ELQ is likely overkill. Invest in training or hire a seasoned admin, or you'll likely realize a fraction of its benefits.
Preparation is key - map you content, identify your power users, and don't gloss over integrations.
What business problems are you solving with the product? What benefits have you realized?
The primary business problem we set out to solve with Eloqua was messaging prospects, leads, and customers at scale, and measuring the effectiveness of that outreach. We've since expanded into omnichannel marketing and ABM. To date, ELQ has met our needs along the way.
We now know who is engaging with what, and more importantly, what's NOT working, enabling our Program Managers to make data-driven decisions about their programs and measure the impact in metrics that resonate across the organization.