Some people like myself are interested in one trainer only, and that trainer is the L-39ZA. And not for training purposes either, but as a light CAS / COIN platform because the bird is just excellent for that. I can even routinely take out light armor such as BTRs, BRDMs and MTLBs with the S-5s now and bomb fairly accurately too.
So the Albie has its uses outside the training environment. Rather, it boils down to your preferences and making suitable missions for it. I'm a stick and rudder guy myself and thus find the high-tech birds rather boring, regardless of their formidable strike capabilities and overall effectiveness over the battlefield. But that's just me ;)