No. If I have to pay 420 Mass for 150 anti air dps and i dont even have a speed advantage, it is just a waste in comparison to T1 or T3 air. The consequense is, that i switch to inties or rush T3 air to build ASF. And this is a gap. Janus as eg.
edit: and btw this is the reason why ppl keep rushing T3 air.