Firstly, thank you EA for keeping the afro in the game this year, it makes Sane very easy to distinguish on the pitch.
I play Sane as a LF up top with Gnabry IG, tactics set on to run in behind and come back on defence in a 3-5-2. If you're here you already know the man is rapid, and this is very obvious Ig instantly. He links up with players well and his good positioning makes sure he makes the right runs, especially if you put a Deadeye chem on him. He is at his best the same as in real life when you can get him running past players and into the box from good passes.
However compared to Gnabry I don't tend to notice any major difference, they both play very similar. If you like Sane and have the money to burn, go ahead and buy him, but the coins can probably be better spent elsewhere. If you do need a german left mid, there is really no other option, but for the premier league Martial will do the same business for a lot less coin.
Easy to Spot
Weak foot feels worse than 2 star
Expensive compared to alternatives