I don't know, it just felt like it meandering, and went nowhere like they didn't know where it was going, and there were too many random elements and wild leaps. The only thing I enjoyed about it was seeing some more of the TARDIS.
Everything else I've seen I've quite enjoyed though. The first episode was strong, and that whole first story was solid. The Daleks story was great, even if a little padded at times with how many episodes it took. I'm loving the keys of marinus so far. I like all of the elements in this one, the adventure element of the quest for the keys, the wristbands, and them being deceived by the brains in jars. Classic scifi.
What's most interesting is seeing everything develop. The Doctor is a much different character at this point, and less central to the stories as he is now, and everything that is now iconic and taken for granted is here for the first time.