3 AV 12 HPs is easy to pop with something else available in most instances, right?
3 Hp + ~1 hp every turn + a guaranteed 4+ cover wherever you want it is still a pretty good deal against most things. Lets just say 2 dreadknights statistically can't pop it in 1 turn.
I Noodlers, solemnly swear not to buy any new or used models until I have completed the following
Painted my Chaos Space Marines, Dark Angels, and Imperial Guard to a tournament standard