It's a huge relief to see him play like this after last season. He reminded me of teenage Messi with some of those dribbles.
I remember having extensive discussions last season about Messi on this forum. It seemed like people had forgotten how good he used to play in previous seasons, excusing his clearly below-par performances as 'nothing happened, still the same', 'still recovering from injury', etc. By the time of the Atletico CL fiasco and the Pinto distance covered comparisons, the pendulum swung wildly to the other extreme - 'he will never be the same', 'past his peak' etc. I was kinda on this side, obviously with a more moderate opinion, because I genuinely thought he would not be able to recreate his 2012 level again, let alone 2010/2011 level which is my favorite Messi. But he's proven me wrong massively since the Sevilla record game, I haven't enjoyed watching Messi so much in years. Not only do I like him more than 2012 Messi, but I will even concede that he's at 2010/2011 level if he keeps this form up into the latter stages of the season.
It's obviously difficult to isolate the factors that have contributed to him regaining that level. Is it just the lack of World Cup burden, or does it also have to do with Lucho's positional shift, or does it also have to do with Suarez's presence and Neymar's explosion? Change in diet? He's looking a fair bit leaner and more agile than last season, you can tell not just from his body and movement but also his face. Or maybe he is improving the economy-of-movement style and getting more and more from less. Whatever's the case, long may it continue, we only have 5-6 years more of Messi to watch and I don't want them going down the drain due to incompetence of the coaching staff or teammates.