Not very well, according to this article from Salon.com.  Here’s an excerpt:

Perhaps most troubling, the Army seems bent on denying that the stress of war has caused the soldiers’ mental trauma in the first place. (There is an economic reason for doing so: Mental problems from combat stress can require the Army to pay disability for years.) Soto-Ramirez’s medical records reveal the economical mindset of an Army doctor who evaluated him. “Adequate care and treatment may prevent a claim against the government for PTSD,” wrote a psychologist in Puerto Rico before sending him to Walter Reed . . .

The high level of satisfaction among inpatients as reported by Walter Reed is completely opposite what I saw and heard while tracking soldiers there over the last year. The soldiers I interviewed invited me to their bedsides in the lockdown ward. They handed over their private medical records. They allowed me to call their buddies, their girlfriends, their mothers. All professed to loving the Army, though some said their trust in the institution had been irrevocably shattered. All said their symptoms either stayed the same or worsened while at Walter Reed; two said they made suicide attempts. While it’s true that patients’ self-reports about treatment are not always objectively based, the repeated, bitter complaints I heard over the course of more than a year, in combination with conversations with civilian experts, cast serious doubts on Walter Reed’s approach to treating PTSD sufferers. It all convinced me that something is seriously amiss at the Army’s top hospital.