Hawkular Metrics is a scalable, asynchronous, multi tenant, long term metrics storage engine that uses Cassandra as the data store and REST as the primary interface.
I like how it helps to integrate your application with third party APIs (like Google Analytics). There are some options for customizing dashboards but they can be quite hard if you don't have any programming background. Also sometimes its not easy or possible to see all fields from an API call in one dashboard so we had multiple separate ones which was annoying at times - especially when integrating them into our web UI where everything looks nice & uniform! We were trying out different…
Pros
That I could connect my application with Google Analytics this is a great thing as I have a quite complex setup for my app
Cons
I have not come across any major issues, it was just quite easy to use