Sun Fac viable for Arena and Fleet until when?

Sun Fac is one of the best tier 2 toons out there. He's not meta, but can be very useful in situations you need more than one team (read: TB, TW). His ship is the same. While it doesn't hold a spot in the current fleet Meta (TIEs + Biggs under Empire Capital), yes a very useful ship that can hold it's own. The only real issues with him is the high heat requirements and the fact that his shards are a hard farm. Nobody wants to spend that much effort on a B class toon. Just ask Gar Saxon.