I enjoyed it, but I agree, any real sense of peril is gone.
But I think the number one thing that bothers me the most about Smith's Doctor, is how he pulls out the sonic screwdriver every 30 seconds. It's gotten to the point where it's just a meaningless act.
It's exactly because of its overuse and ability to do everything, that I've lost any interest in that particular prop. He uses it for everything now, which is why I suppose this incarnation is so thick and childish. He doesn't have to think anymore.
Slowly and surely, the series is alienating both adults and older kids. I know everyone will say the series is aimed at kids, but now the acting and scripts are aimed at very very young kids. It comes to something when a six year old loses interest because she thinks it is, and I quote "too baby-ish". It is supposed to be prime time family drama. Viewers used to have to think about what was happening, now, if they do, they find nothing actually makes sense. The endings are so predictable, the monsters rendered impotent and DW universe history re-written to satiate the need for Moffat to stamp his mark on the series for all the wrong reasons.
I had such high hopes for him after the brilliant stories he wrote before, but since taking over he has turned a great character into a gibbering idiot, the brilliant Angels into the opposite of what they first were, and the Daleks into crude garishly coloured re-imaginings from a brilliant design that almost everyone agreed upon. Now the TARDIS gives birth to sonics en masse, actually has an invisibility cloak (what's the Chameleon Circuit for then?), the companions have become more important to the stories
and even both series so far. The Doctor has become a sidelined character that is predictable and not even the one that solves the problems in the vast majority of stories. I can't abide the way he can now survive things like space, vacuums and all other manner of stuff that would previously have killed him. It was subtle things that stopped him from being human and more of an alien species, but it was his close resemblance to humans with a real humanity that made us identify with him. Now all that has been thrown out so that something cool looking can be thrown on screen. Story sacrificed for the sake of visuals. All of a sudden the whole DW universe has become claustrophobic, repetitive and has lost the epic scope it once had.