If you look at his injury history though he's always rebounded and had very productive seasons after a prolonged injury before the next one sets in. You just want to catch him on that rebound.
He's been rehabbing for a year, I'd say he's worth a punt if the going is tough on sourcing a striker which is both healthy and productive.
if hrs on a performance based contract I think it could work out quite well for both parties
I also don't think these sort of guys pan out often enough (ageing high profile stars I mean). Look across the A League and how many have been geniune success stories vs how many have struggled to make a significant impact.
It might be controversial but I'd rather take a punt on Semmy. He's got more to play for, doesn't need to adjust to the culture and everything, has years ahead of him, could be a local player one day, and would be way cheaper. Players from that level stepping up actually have a better record with us I think. Krishna of course but also the likes of Sigmund and Muscat who came from the tier below the A League. I don't even think Totori was as bad as people think, he wasn't given a chance to settle in and Ricki wasn't the right manager at that point in his career to get the most out of an attacker with flair who liked to run at defenders