The people I interacted with most were Healthcare Information Systems Officers (70D), who were generally O-2 to O-4. Given that they tended to be fairly early career and living in low cost areas of the country, with college paid, it was a pretty good deal for them.
I think flexibility is the real problem with military hiring, not absolute pay levels.
After allowances, they are making about 52-70k depending on which rank they hold. That's not bad for what they do, but if they were actual doctors it would be terrible.
Its also not a technical job in the traditional sense, 70Ds typically spend 8 years as a 70B (Even though a lot of them will be slotted as 70Ds much earlier than this) which is essentially a management position at a medical facility.
From the description of 70D, it could end up being a technical job depending on the particular assignment, but its more oriented towards healthcare management types.
Its not a bad deal at all if you are looking for a way to pay off your student loans.
if you're a military doctor not only do you save approximately $200k on the cost of your schooling you also far outearn civilian doctors over med school and residency. even top residency programs pay very little. until you make attending (or possibly fellow) you are probably making half of what your peers in the military are making. military doctors earn less for the last 4-6 years of their service but they more than makeup for it over the first 8-10
I think flexibility is the real problem with military hiring, not absolute pay levels.