Bobby Firmino is one of those players that you get what you pay for. Due to his shooting, passing and dribbling you can use him as a ST, CF, CAM or even as CM. Personally i used him as ST and CAM/CM. In every single position he has something unique to offer. Also with 90 stamina he makes up for the H/H work rates. What i enjoy with hi, is his finesse shot outside the box and timed finishing.
Passing (Not the best but its fine)
His long shoots could have been a bit better.