I don't know when Nalex was at ASR, but there hasn't been a base camp for quite a while (before my son even entered the school). Also ASR no longer does Costa Rica (and hasn't since last Jan).
The system that is used for meds is a unit dose system that is prepacked in individual doses (like in the hospitals) and is prepared off campus by a pharmacy company.
Kids have "cheeked meds", usually Adderall to snort later. This happens at every facility ocassionally. As for over-medicating, we actually had the opposite experience. The psychiatrist was overly cautious, raised doses slowly, and in our case I felt the dose was subtherapeutic.
The living quarters were actually like a college dorm. In fact, each room had their own bathroom in the room. We looked at several TBS's and ASR had nice rooms (the other schools were more like camp cabins).
ASR was also the only school that had central air, in the dorms, dining room and the academic building.
ASR hired a food service (that cooks for other facilities) and the food is pretty good. In addition to the menu, there is usually a salad bar and deli bar. Drinks are available 24/7 at dispensers like the fast foods. My son ate much heathier at school than at home.
On weekends they could get soda and candy with the school store money ($2/week).
The kids used to do their own laundrey, but as of spring ASR hired a laundry service, and kids no longer do laundry.
Housekeeping in the dorms and common areas are done by the students.
Gardeners mow the lawn and tend the grounds.
Students do work in the kitchen (dishes...) as a negative consequence. My son actually prefered the chores than having to write "reflection" assignments when he broke rules.
If one didn't know that it was a therapeutic boarding school, the physical facility looked like a regular campus. No gates, fences...
I am not meaning to sound like a brochure for a hotel I am just answering the questions posted. I can only compare it to the other programs (out west) that we looked at.