IMO he is a good to great player right now, but for sure we dropped the ball paying that money for him.
Right now, i think his wages are an issue we need to solve. Since theres no point in continuing nurturing him and his minutes.. i think the wisest would be to sell him and put all our eggs on the dybala basket.
Mandzukic is leaving, bring Morata on a cheap and let those 2 battle it out the 9. Morata can play on the wings as he had done before so theres no biggie if Dybala is our main man.
Back to Higuain, i think his value right now is around 30-40 mils. When we bought him, his real price was around 60-70... and right now , is not like he is a wasted 36 year old fatman...he still has a lot of goals to give, specially if a team with good assistmen hire him.
If we sell, we need to ask for no less than 35. Less than that is robbery for a striker of his caliber.
Sell him and give dybala his mantle to see finally what he has got as a main striker.