I got these guys to fill out a few more bodies in my army list, but since assembling and painting them I have really fallen in love with the models.
The robed approach really works for me, and they are just a nice kit to put together!
On the table top their 6+ Binding Oaths to prevent wounds lost is nice (no where near as powerful as Warhammer Community made it sound of course), but not gaming breaking, and its always nice to prevent a wound or two.
All in all I can see my self adding another unit, probably with 3 Guardian Spears and 2 Castellan Axes to give me a bit of a mix and match approach with the unit (or units). Plus 10 of these bad boys arriving from Deep Strike - even with the new Beta rules - will be amazing!