What do you mean with Alarm quality. ET enhances the default NNM 6.4 correlations with some own circuits, for example some ECS circuits specifically designed for HSRP.
All in all I think the dynamic views can be a valuable add-on (if you really use things like OSPF/HSRP/Vlan`s). Please do check wheter your devices are supported by ET. Also (if possible) try it out on a seperate machine. Do not activate ET on a production machine, as it will flush the existing NNM DB`s.