Good news to hear. I have drifted from Arrow a little bit but The Flash remains compulsive viewing.
Legends of Tomorrow has just started airing in my region and we are up to the second episode, my intial impression on it is that it doesn't quite work, the concept and format gives the feeling of being rather nervous and desperate, as unsure of itself as the audience is. But it does serve to tie together DCs television universe and as it progresses I can see it may well begin to gel and find its feet proper. I think for series 2 some rethinking will be required and some new faces though... as surely Rip Hunter and the time travel concept cannot be extended to a second season?
I could see doing Rip Hunter and time travel for a couple years, but not Vandal Savage. That would get old to be going after him for a couple of seasons. I also wonder if they will do the full 20 some episodes next year, or just do a partial season. This show might function better as a half season show with a different goal each year. You could also swap out characters as they introduce new ones in the other shows