No one else seems to have noticed the in-joke in "The Beast Below". An obvious reference to "The Idiot Lantern"... or I assume so, the tent that Amelia goes into has the slightly obscured sign that reads "Magpie Electricals" and I only noticed that on a second watching. I imagine others have seen it, it's probably just such a trifling detail no one thought to mention.
Personally, I have to say I loathed RTD - who was just writing poor fanfic - and Moffat is a breath of fresh air. I like Matt Smith... I thought Tennant was good but really, RTD made him such a big god damned Mary Sue (and The End of Time ramped that up PAST 11) that he was never really allowed any nuance, bouncing as he did between emo and hypermanic... Also, Amelia Pond is the first companion I've considered actually hot... and especially after Donna, that's a big plus.
All in all, it's pretty top drawer thus far. Not super special amazing but just a VERY welcome change from RTD's fanfic o' the week.