I've loved it since the first episode. Arrow is really kind of a dark and serious show and Flash is the opposite it's optimistic and light-hearted.
That is an excellent point. Both shows very much have their own identity and I'm glad to see the producers understand that. Heck in the penultimate episode of this season we see what happens when Barry tries to emulate Ollie's style and it blows up in his face. It felt like the writers and producers telling the fans they understand how important it is for each show to have it's own identity.