What do you like best?
Whilst vSphere vCenter does give you alerts and performance metrics, it's up to you to make sense of it. This is where Foglight steps in. Foglight is brilliant in the way it helps you understand your environment. It can point out performance concerns quite quickly such as high CPU wait times, memory ballooning, wasted disk space from orphaned VMDK's and zombie VM's.
What do you dislike?
We are currently using Foglight for Virtualization Standard. Unfortunately this product has been discontinued and the only option now is Foglight for Virtualization Enterprise which is more expensive. This is a negative, as even though Enterprise is much more advanced, Standard fit our needs much better. One other thing to note is that Standard requires Java for some functions, however Enterprise is complete Java-free.
Recommendations to others considering the product
We are using Standard, which is no longer available. Enterprise is great, however, you need a fairly specific use case and environment size to use it. If not, the return on investment may not be likely.
What business problems are you solving with the product? What benefits have you realized?
We use Foglight to pinpoint performance issues and bottlenecks, as well as minimize waste. The reporting functionality is quite good and we can even schedule cleanups. We have saved a fairly large chunk of time by seeing all this information in a single pane of glass and then being able to act on it easily and effectively.