At one point, our local paper did a side-by-side analysis of Tricare as opposed to private insurers (not HMOs or PPOs), and the insurance that I (through Daddy) have was heads and shoulders above Tricare.
For every story about how great it is, I've heard 10 horror stories. If you compare it to an HMO, yes, then it might be better.
Let it be said now--I don't think non-commissioned officers are paid very well. Whether or not I agree with the war is immaterial. But, some of the benefits (base housing or a housing allowance, access to lower-priced goods through the BX and Commissary, etc) outweigh the relatively low pay. I mean, where else can an 18 year old who barely finished high school have access to such benefits?