Rome 390 boss is a good choice. I have never used tt30 so dunno.... My son likes either 390 boss or flow nxt/nx2. I only use the flows. Both brands have been super durable though.
My wife has some flux bindings on one board and unions on another. The flux build just does not seem as durable to me, the unions seem a little better. They are both super light weight compared to the Rome and flow though.