Actually there is a lot of things wrong with it. I hate to sound like a nitpicker. The model is nice, and detailed and a lot of stuff is really good, but there is to many details that is totally wrong.
The canopy looks kind of strange, the front hatch for the front landing gear has the wrong shape, the "hump" for the servo for the air brakes is too short and slightly displaced, the outlet for the PSU has the wrong shape, the gun looks very strange, the "ridge back" is wrong some stuff on the fin looks very strange and so on and so forth.... And on top of that there is some serious structural errors.
Sorry that my criticism is so harsh but my intention is not to bash the modeller or his effort. I would love to see the Gripen in this sim, but I certainly hope they won't use this model. At least not with all the faults it has at the moment.