Vantaggi
HLP was (is?) conveniently located in North Dallas in a very nice building with a garage where I felt safe if I worked late (the building also has a gym). On the business side, HLP provided recruiters with access to job boards like Monster, Dice and CareerBuilder. Metrics were reasonable, and based on number of open orders. The President (female) went above and beyond to remind recruiters that they are valued, which I don't see very often in organizations.
Svantaggi
My experience with the staff up through C-level was good (I thought) until I realized the gossip, rumors, wolf-packing, etc....but they were nice to your face (most of the time). Humans are fallible, but I just felt it separated a team of people who had no reason to not get along. I would compare this aspect to a church sewing circle. People who seem to mean well, but ultimately do not stick by one another.