I bought him for Bayern, first season, after having heard and seen people on various forums rave about him constantly for the last couple of years.
At first, he was brilliant, scoring 6 in his first 5 games. Since then he's been generally average, with some great performances and a few awful ones (so generally decent but not reliable enough for my liking) and his strike rate has dropped to 10 goals in his last 23 games. Still a strike rate most forwards would be fairly happy with, but Mario Gomez, who's also been quite unreliable performance-wise has blown him out of the water with 29 goals in his last 23 appearances. So while Jovetic hasn't exactly been bad, I've yet to be convinced he's worth the €20m and €98k p/w investment.
Recently I've stopped using him as my striker as he kept abandoning his position to go out wide and instead put him in the hole as a trequartista. It's early days as I've only used him there twice so far, but he's got a 7.5 and a 9.3, picked up a goal in both games and got an assist against Nurnberg, so I think I'll keep using him there and see how it goes. Which may end up spelling the end for Thomas Muller who's already become a backup player thanks to competition from Kroos and Adryan ...