The weps that drop randomly are better then the First boss wep untill you kill a few bosses. Well they arn't at first but if you EXP them they will get to be like 20/30 weps and + 30 or 40 to a stat.
The exp gained on those weps does not continue outside of Nadox.
However The T5-6 Gear after pushing 5 bosses is nice I still stand by the fact you need a reliced/aa'ed group to atleast learn the zone without to much punishment.
A fresh group of 65's will not be able to use nadox as gear progression. One would be in much better shape to spend the 5 hours it would take to learn early Nadox inside Cmal.
This can be scued by taking some one that knows the zone and the traps, making Nadox a much better choice for exps. My suggestions for this zone are to make the zone a little bit better for the starting off groups. For example more of an introduction to traps and the mob types that won't cause a instant wipe the first time you meet them.