Evergage fills a space in the analytics market like no other product I've tried.
While many people will not have the demanding requirements that I have for Evergage, I really have put it through the paces and pushed the support team to get me top-notch data exports for our predictive analytics projects. And you know what? They have delivered.
After 2 years of using the product at 2 companies (I requested it at my latest job and got it), they just keep adding critical features like UTM tracking, custom variables, custom event support. API enhancements, Improved online support and the ability to export both events-based and user-based tracking (without the annoying TOS Google Analytics is now requiring for tracking by userID).
they've even recently added the ability to "bucket" into segments by event occurrence. This is huge for our A/B testing and multivariate analysis of the numerous "personas" and "affinities" that we know about our users/visitors by ID.
Oh and did I mention that they generate unique userIDs for all anonymous visitors and they will overwrite that system ID and use the userID you indicate when you know the visitor's userID and configure Evergage to use it! For customer analysis and sales optimization, this is irreplaceable. I've written a bit about how Evergage has allowed us to create customer churn-risk scores here: http://blog.findable.me/post/52410161427/3-steps-to-building-customer-churn-risk-scores.
Basically, I'm now an Evergage fanboy (or "net promoter") but I actually have no affiliation with the company.
The only thing that is annoying is that their UI (which majorly improving every month), it has some annoying bugs occasionally. And I wish they had a simple dashboard iphone and/or android app. But I think all in good time.
If you have any data scientists in your company (or even just data analysts and web developers), you're going to benefit the very most from the full event-based and user-based data exporting Evergage allows you... we're reaching 1MM rows of data events after 1 year of implementing and the rich data points we have are enabling us to customize and optimize our entire site to user-specific specifications (even when the user may not have explicitly told use their preferences -- plus their A/B testing and segment "bucketing" allows us to determine if our visitor customization actually benefited (or possibly harmed) the all-important "time on site" engagement measurement of our customized pages. This is really helping us do better customer analysis.
We're pushing Evergage to it's limit to tag and segment visitors by numerous person (and factor analysis) requirements and it's performing beautifully. It's a newer Analytics product so I have been impressed by their ability to really add the features I want as an analytics professional without getting sidetracked by unimportant features. Not sure if they are getting customer's feature requests, but if not, their intuition for the "next thing to add" is great.