dear sir or madam,

I am arriving beijing capital airport on the 30 november 2009 at 21.30 pm.I will stay in tangyue hotel donghuamen street dongcheng, my question:
1. is it safe using airport subway express to tianament east station?
2. until tianament east station what your sugesstion using taxi to reach my hotel or is it safe for me to walk alone to that hotel at 2300 pm in local time...thanks