I've said in the Tierney thread that I love Scottish players playing for Utd but I dont think McGinn is good enough. Seen him plenty of times in the SPL and for Villa, as I like keeping on tabs on Scottish players. He's done very well at those levels. However, I'd see how he gets on in the EPL for a season first before going for him. There's a lot I like about him - work rate and commitment being two. I also feel he's one of those players that always has a bad mistake in him, mainly from trying to do too much with the ball/dwelling on it. I think this has been most obvious at international level but I've seen it wherever he's been.
It hurts to write this about a Scottish player who has been linked with Utd but I would be cautious, especially at 50 million. This is just my opinion and I know plenty of people who rate him highly. But at the price quoted in the article, right now I just don't think he's worth it.