I have been surprised by Phily's strong play this season. 
(1) I didn't think Brand would be able to keep up this level of play for a whole season after his poor performances these past two years 
(2) Plus ... I though,t and still think that, defensively, their big man rotation is abysmal (Hawes, Brand, Speights, Battie, Songaila + small ball lineups with T.Young without a defensive five alongside him) ... and that those flaws would make them a below average defensive team despite their considerable defensive talent on the perimeter ... but they have worked around that and been a far better defensive team than I expected. 
So yeah, very impressed with what Phily have achieved so far this season. Hats off to them.