Newcastle are definitely one of the impressive teams this season. They have lost only one match which was an away one against Liverpool. They are among the best away teams so far. Especially their win over Tottenham was really impressive. Because it was the only point loss for Tottenham in home matches at the same time.
Newcastle is another example of where money can change everything 
Their conditions are completely opposite in the previous seasons and even as far as I follow the EPL this is their best performance (excluding their golden era because I did not follow the EPL at that time).
With the condition of abundant money they have transformed into a club that looks like it will now be preparing to create a new domination and destroy the previous big 4 dominance.
This week they will face Southampton and of course this could be an easy thing for them if you look at Southampton's current condition.