It's good, I did it 3? years ago. we replaced all the belay anchors except for 1 up high when we were low on bolts and unsure how sketch they'd be up higher. I believe it was the belay a pitch or two above the A5 traverse. Bring a drill and do that one as once it's done every single jingus belay on it will be fixed. I can't remember if it would make sense to pull the old quarter incher and redrill it, or if it was in an idiotic spot. chances are it's the latter, in which case just leave it and drill a fresh hole in the right place. We found that each belay had 1 good 3/8ths, and then 3 or 4 randomly placed 1/4 bolts, like one high and left, one low and right by your knees... dumb stuff. We were climbing with two ledges, so at least the belays that we slept on are set up wide enough for party walling. The wide spaced rivets and things like that were left as sleeping anchors too.
The headwall is rad, lots of fun beaking pitches, nothing very hard. Just a great location. handful of pitches with big lowerouts, having a second lead line could come in handy. Would also prove useful when lowering the bags out off the top of grey ledges as otherwise they end up taking a huge whip, theres a pitch there that's practically horizontal. haul the bags to the highest anchor so they don't have as far to go.
Thats all that comes to mind, worth your time, go up there and have some fun!