Say hello to your little friend.
This is what a true Sentry feels like, something powerful with subroutines you cannot allow to fire, and at 0 influence how could you not justify its inclusion? (Unless you intend on being a poor corp.) 7 rez cost to 5 strength is fair, and with two subroutines being a trace of 5 and 4 respectively, each with good effects, hell yes.
Trace dependency always comes at a cost, but their respective trace strengths will impose more of a tax to the Runner as opposed to a blanket effect. What gets overlooked with Tracer ICE is that it plays mind games with a Runner, forcing them to consider spending their money just to get through this one time, or even allowing the net damage trace to fire. Overall you're looking at a solid piece of ICE that Anarchs without Datasucker are going to loathe, especially as it'll take 4 cards with Faust to break. This is a serious inclusion to most decks that can support the costs and will see a lot of inclusions in the future.