but haven't heard too much on vasari support cruisers.
They're... iffy. They're useful, but not as readily so (as in, you can see how to use them as easily) as the TEC ones. One has the ability to do repair / armor buffs, the other weakens enemy shields (reduced mitigation and increased phase missile penetration chance). You can upgrade one or the other (I don't remember which goes to which) to see, and then interfere, with incoming enemy jumps, while the other gains the ability to do micro-jumps and screw around with enemy ships functioning.