It’s close to being decent, sure. The issue is mostly just that it can’t be your only sentry breaker for any kind of reliable winrate against Jinteki, and then you’re having to double up again. You can only facecheck so much even with it, after all.
If it was STR 1 or 2, even, it’d be better, because then it could take down Tsurugi cheaply.
As it stands, it’s more expensive than Mimic to do less in the long run than mimic, and to do the short-run more expensively. And while it’s nice to be able to facecheck more safely to avoid Grim and Archer, it’s still a super-expensive way to handle those given how strong each is.
MaxX might be able to handle it, but it’s just not solid enough. Maaaybe there’ll be decks that prefer it with big money prep and one-turn kills, but that seems unlikely at best.