DK viable?

Hi guys so i just joined this server after leaving retail and i was wondering how viable are Dks on this server? Are there alot of bugs? Specifically in Blood on WOTLK.

I remember playing on a private server many years ago and the bugs really made Dks unplayable

In general all DK specs are viable in both roles. The only one falling a little bit behind is Blood DPS as it needs a lot of Armor Penetration to perform well. (The Blood-Gorged talent is giving Armor reduction instead of Armor Penetration which is hitting this spec quite hard)

I can say some things are not really working, but then again. Still viable to play tho.