I have TRS and I know nothing about deductibles and all that other healthcare jargon.
All I know is that throughout my pregnancy, I paid minimal copays (~$10/visit and $3/prescriptions). And as far as I am concerned TRS is awesome! My DS is 4months and I still haven't gotten a hospital bill. I had 2 emergency hospital stays during my pregnancy and did not get any bills.
Also, if you are a slacker like my DH, you don't have to worry about getting LO into the tricare system right away because they are automatically covered for their first 90 days! Hope I helped!
Like PP said, it depends on the area but I had no problem in the Western New York area accepting Tricare.
What I know so far with TRS (being covered myself) is 1. I did not have to pay a deductable to the Dr. Office, nor any co-payments. I just show up for my appointments. 2. I only pay $9 a month for my Rx prenatals. 3. All ultrasounds that are "medically necessary" are covered. 4. In-patient care is going to be $16/day once LO arrives.
Hope that helps