JazzG agree with this. This isn't the same PSG as we've seen in years gone by but I still think this was our best European performance for a very long time. I honestly can't remember the last time we looked this impressive in Europe, certainly not since Wenger.
On the other hand, we were pretty disappointing against Atalanta - less the result and more the performance. So I'm wary to get ahead of myself but some very positive signs that regarding a (hopefully) newfound tactical flexibility and creative fluidity.