In my experience is weak agains 4-5-1 flat and not so bad but not optimal against 4-5-1 V because if your opponent changes to 3-5-2 V you'll be in serious problems and worst if you are playing away.
In my experience is weak agains 4-5-1 flat and not so bad but not optimal against 4-5-1 V because if your opponent changes to 3-5-2 V you'll be in serious problems and worst if you are playing away.