Andreia covered everything that I would say pretty much exactly.
I think the writers got lazy. Some of the episodes were just plane bad:
Ghosts
and what they did with the wedding is unforgivable!!
I think they also showed a decided lack of any imagination of what to do with L&C as a married couple. Still, there are some episodes that I like in here. The ones I enjoy are:
1. End of NK arc
2. Soul Mates
3. People vs. Lois Lane (even though the trial was a farce)
4. Dead Lois Walking
5. The Myx Christmas episode
6. Sex, Lies and Videotape
It could have been so much better, but, with a few exceptions, it wasn't horrid.
Bob
