I wouldn't say 'bad' but they were incredibly hard. I found the overwhelming sense of responsibility for this time, perfect person absolutely crushing. She was so small and so vulnerable yet relied on me for absolutely everything, that was a very daunting feeling.
Combined with that was the physical recovery, again that wasn't dreadful, but I was sore and bruised and needed plenty of rest, which is hard to get at this time.
Combined with that was learning to breastfeed which I did find very difficult. My baby struggled to latch well and I thought that it would never stop hurting. It did, and soon became wonderful, but those early weeks were very very hard.
In addition to everything else, there was just an over-riding sense of the surreal. That the whole situation was so weird and so new as to be incomprehensible.
Finally, all those things combined with repeated nights broken sleep (late nights out clubbing, or festivals or pulling an all-nighter at Uni does not prepare you for the cumulative effects of 6 weeks broken sleep) worrying about whether baby is eating, sleeping, pooing right meant that the early weeks were a physical and emotional rollercoaster. Yet I still wouldn't say that they were bad. They were a steep, rocky, interesting learning curve and I'll never get them back, for which I'm half sad and half glad.
Best of luck, we all get through it in our own way.