Many of XOTcl features are only interesting for special scenarios such as OO-frameworks or wrapping techniques.
For OO-Beginners these XOTcl-Features might be not interesting:
- method forwarding
- filters
- meta classes
- slots
- mixins
- assertions, pre/post condition
- non positional arguments
- object aggregation
I have ordered the features from most advenced to quite practical in my opionion.
Method forwarding (aka delegation) is an absolute must and common feature for megawidget development (fwiw).
Jeff