I generally don't watch dramas from this era. I am also skeptical about political-spy dramas where I expect strong ideological overtones. I watched this drama because of Li Yifeng and I have absolutely no regrets. Yes, there was a bit too much ideological talk, but the plot, characters and especially the unpredictability of certain events and constant suspense made up for everything. I don't think I've ever seen a drama that builds and maintains suspense so well and allows you to root for the characters, even though I'm not interested in the cause they're fighting for. The drama was really gripping, touching and full of action and fascinating characters. I just couldn't get bored with it and I think it's highly underrated because of its ideological message. But it is an excellent spy drama, much better than James Bond.