In real life you choose what parts to level, what to learn. As a developer do you choose to level up or are you stuck fighting the same kind of problems without gaining XP?  As a developer do you choose to spend your experience: Learning to talk to customers Learning to work with others Learn patterns, how to write prose Learn new technologies Learn how to write tests Learn how to automate tasks (build, installation, et.c.) This is just a short list. What I mean is that you have a possibility to choose [...]

There are no automated tests of enterprise library in the source code. Avoid if possible.

The number of test needed for a given functionality in a program is proportional to the probability of unique errors weighted by the business value of correctness for that given functionality. 

There is the eventlogreader

For parsing log4j files there are some alternatives: Chainsaw (java gui). If the links dead, note that it should be part of log4j. Similar to chainsaw but in .net: logviewer. Log2Console looks pretty sweet. It has some positive comments. On the logviewer page you find a sample configuration for using "log4net.Layout.XmlLayoutSchemaLog4j". Note that the log4net xmllayout should be parse:able by logviewer as well. Both NLog and Log4Net can log to the log4j layout.