1) Easy to get 100% achievement if you are willing to spend some time playing and completing it.

For DLC ( Nightmare in North Point & Year of the Snake ) achievements wait till theres a sale for the DLC and purchase them. Require about 3hours to attain all the DLC achievements.

*Guides for most achievements are available online (search on google).

2) Lots of cantonese vulgarites that can be learnt from the scenes of the game.

3) The high resolution texture pack (DLC) is free for download.

4) Don't waste your $ on the top dog silver pack and top dog gold pack.