[thejdude]

It's great because you can use whatever backend you're comfortable with in your setup. Are you a JUL guy? Great, configure JUL then.

I took a totally baroque project setup (they just don't know WTH they're doing) with some JUL and some log4j, piped everything into SLF via the bridges, then configured a log4j backend (which I'm confortable with) and now I'm the only person in the project that actually has control over their logging and configures it to log into nicely separated files for application output, SQL statements and so on :-)

In an ideal world we'd all just use one log system, but Sun screwed that when they created the very unnecessary JUL back in the day. SLF solves the logging mess nicely.