I've used GoodData for 6 months now. Their customer service is excellent and their technical support is good as well.
Valuable features include:
- Full cloud - zero infrastructure costs (servers, maintenance and automatic updates)
- Nice dashboards which exceed the expectations of many users
All indicators are in a simple and functional dashboard which has helped improve my organization. I implemented in-house and the initial setup was simple with no issues. The ETL tool is easy to use. I'd say that commercial, financial, account and production has room for improvement. I haven't encountered any issues with deployment, stability or scalability yet.
Before deciding on GoodData I also evaluated QlikView and Tableau which I decided not to implement because they are desktop tools (even server solution is poor) and my company needs a datawarehouse and datamart solutions.
GoodData has a low cost of implementation and fast deployment due to the support their team provided me with.