I wouldn't recommend a team of United's ambition to sign Xherdan Shaqiri for € 20M and it's not even about his qualities as a football player. He has talent, he has exciting attributes like his mid- and long-range shot or his pinpoint-passes in the last third. He also has glaring weaknesses like his inability to keep possession on the dribble or to find the best passing option under pressure, but a lot of young players have issues to work out.
What's really worrisome is his mindset whenever he talks about his situation at Bayern München and those are not only reports, but based on direct quotes from the source.
For example he believes he's shown enough to deserve a regular starting-spot at Bayern München. He hasn't even been close.
He believes there's nothing left to prove for him, all that stops him from being a top-class player is a lack of minutes.
He believes Pep Guardiola didn't give him the playing time he deserved last season, in spite of the fact that he played more minutes per game than under Jupp Heynckes, while being injured all the time.
Or my favourite, he believes he's being benchend based on politics and wouldn't even play had he scored in every match.
This young man's attitude is very bad and stinks of entitlement and arrogance or worse, maybe even delusion. The best career-advice anybody can give him, is to fire his brother as an agent and get the services of a real professional. Somebody who will tell Shaqiri a realistic assessment about his abilities and future, instead of family and friends, who butter him up with their bias all the time. I still remember how he phantasized about a move from Bayern München to Barcelona when he first transferred to Munich in 2012. That's the kind of thinking, which got him into this troublesome situation.
Shaqiri has talent, but he's a project and not somebody with an immediate positive impact.