I like the idea of hirelings, but I'm not as impressed with Larian's apparent implementation. On the rare occasions I do use hirelings, as opposed to companions, in CRPGs it's because I want to put together a specific race and class combination that's not already represented. I also like to name them. This doesn't do that, it just gives us what are basically downgraded companions.
Now, to be fair, I think Larian will or has done an excellent job implementing what they have set out to implement. Unfortunately, it does not appear that what they have set out to implement is what I or a number of others want from hirelings.