Sumo Logic

Avantages

Sumo logic is very flexible and easy to integrate with different cloud providers. But it's specifically easy to work with AWS.
I had to create an IAM user and provide the credentials to sumo logic collectors which started pulling in data from S3 buckets immediately.
Option to generate variety of Dashboards from real-time streaming data.

Inconvénients

I didn't like the tabular interface. you have to scroll all the way to the right to find your tabs.
It could be have been made more user friendly.

Avantages

Extremely flexible search and reporting
Log ingestion from essentially any source
Good support for major operating systems
Decent technical support
Good communication with customers
Continuously improving the software in all areas
PCI/DSS qualified

Inconvénients

Some very poor UI design decisions
Poor account management
Performance can be very bad for searches over large data sets or long timeframes
Expensive

Avantages

Surest mean to effectively run diagnostics on your servers to root out any faults that may be causing unexpected hitches. With so much flexibility, you can get just anything. The search feature works pretty fast giving you reports whenever you need info.

It has a rather simplified interface that makes you just think of a mobile app. You can use the dashboard to manage logs of various applications. This lets you see areas where you need to make adjustments for improvement. In addition, you can analyze every log and mine all useful data.

It integrates seamlessly with cloud providers and you get the most done with AWS right by your side. Also, if you're stuck at any point, you can reach out to customer care and have your issue addressed in good time.

Inconvénients

The live-mode feature should be made such that when you start the tool, you are automatically switched on because it's easy to forget to switch it on every time you're starting it. It would be such a good thing.

Avantages

There are user guides at-hand for doing data searches, following best practices. You can quickly access these guides and find what you're looking for in gathering specific information for the data fed to the system. There are also many awesome options for taking data found in your log dive and putting it together to become more useful information (such as seeing how many times a specific event occurred in a specific time frame, etc).

Inconvénients

The way data is stored and retrieved is not intuitive: key words for items allow for a faster search than specifically picking out the exact value of a parameter you're looking for. For example, you know for the purposes of your search that abc="123"; however, searching for that exact thing will take longer to search for then simply searching for "123" ... which will also find values of "123" for parameters, def, ghi, and jkl if they exist. I only want to find values of "123" for parameter abc. ... yet for some reason, there's no good way to retrieve that information, even though we've fed the data to the system, and it exists. This is more of a problem if you actually need to search your data for specifics on a regular basis; if you're just managing the data and only searching for real time data, it may not be quite as important.

Avantages

I like the fact that it looks like a mobile app, it is very simple to use, setting up your dashboard is very simple, real-time monitoring is reliable and being able to add a different filter to every running job, gives makes monitoring very simple

Inconvénients

the "live mode" button sometimes you open up the app and you forget to switch it on, it would be better if the app is always on live mode