If you're competing with SAP, then an ugly interface is a must-have.

It's how enterprise customers know you are Serious Business (TM).

It can't possibly be uglier than Oracle ERP though, that thing (or at least the version my last employer had) is built on an in-browser Java Applet. It also has weird dependencies on an older version of Java, so it can break if you update the Java install on your machine. Ugh!