I'm from the Netherlands and as you can see a PSV supporter. Unfortunately we are losing Gakpo, but I think you'll have a great player with Cody.
For those who don't know Gakpo well; he's a local boy from Eindhoven, supporter of the club as well and ioined our club at a very young age. His best position is as a left winger, although he can play from the center as well (like in the Dutch national team during the WC). I think his best strength is his schooting and passing technique. He's very clinical in front of the goal and his crosses are always dangerous. He has a special body type for a winger; a little bit long and strong, but still pretty fast and agile. His goals/assists rating is incredible. I know, it's just the Dutch League and I think Gakpo will need some time to get used to the (fast) play of the Premier League but I'm convinced he will make his contribution for Liverpool.
He's not a player like Antony with a lot of tricks and always try to get passed his defender. Gakpo will be looking for the best, most valuable option.
What I also like about Gakpo; he's always been a polite, down to earth and smart guy. Makes time for his fans, not arrogant at all, a really good kid.
Really hope he will make it at Liverpool. Glad he didnt went to Man. United.
Ps. Sorry for my bad English, but I hope/guess you will understand it.