If I was a Chelsea fan I wouldn't get pumped up too quickly. Brilliant win but not every game will be like this. We'll have to see how they do against the big teams, and from what we've seen in the first week, they're not in the mood to challenge for the title yet. They need to get through the easy games without any point loss and see how they do against Liverpool. Manchester City and Arsenal look solid in first two games. I didn't watch Liverpool games but they are going good as well. This time we might see a 3-4 teams championship race, at least until the last quarter part of the league. 
They have games that they're expected to win easily in the coming league fixtures but I'll determine how well the team have improved whenever they face a strong English Premier League club. That being said, I think the club fans should enjoy the moment and the excitement that comes with incredible performance of their club.