Sincerely speaking Chelsea had a good game, is not only you that is impressed, I myself am impressed as well, because they made the match competitive and tough as well. no one really saw the outcome coming, a lot of people believe Arsenal will go for the jugular (direct win), but then considering how tough the game was, a draw is fair enough for both sides.
Chelsea played well, even with the draw, I was impressed with their performance. Even Chelsea fans didn’t expect a draw from the match, most of them were expecting Arsenal to win the match, but Chelsea played a mature ball, especially in the first half of the match. Their performance wasn't bad in the second half also, but they conceded two goals. A lot of people will lose their bets because they didn’t expect a draw in the match. Chelsea are getting back to form, and I am expecting them to perform better this season. Pochettino already knows the position that needs amendment, and he will work on it. Let’s expect a better performance from Chelsea.