If decent you mean 5-10m, maybe
But let's not destroy faye trend with Torres and Garcia.
I would say more like 30m and I think Ferran has a far better market than Garcia.
Ferran showed top performances with City and Spain and has had great games for us as well even though he missed a lot of chances and has some limitations in terms of not having a clear role. A lot of clubs especially mid table or EL ones will think they could do a lot worse, and he is also still young and has a lot of room for growth.
He probably won't succeed here, but I can see him being a success for say an EL side, and I think he could get 15-20 LaLiga goals if he started almost all games in the season like Lewa has.
I'm not saying he will be a star for us or that his signing has been successful, I think his time here is probably up unless something drastic changes, but I also don't think he is that bad and I don't see him as deadwood. His performances against Madrid for example confirm that, there is a player in there, it just wasn't the right time to come here.
Last season for example - he had 7 LaLiga goals whilst mostly playing from the bench.