Please note that I'v been playing this game for as long as I can remember.
Age of empires 2 is the grandfather of RTS games, and i'v been playing since I was a baby, Litteraly, This was one of my first games.
If you want a nostalgia trip then by all means, Buy this game now, It's great.
If you've never played this game before or you are new to RTS games, I advice getting, It's a great intro the RTS genre.
- MultiPlayer, It's awesome, It's fun, it's fast and its a lot better than the original.
-Great intro into RTS games
-Lag, It can get a bit laggy towards end game, Especially if you get mods which up the unit cap
-Multi Player community, In my experiance the online community surrounding AoE2 HD can be a little hostile to new players.
In all, AoE 2 HD is a great buy, It's worth picking up, Even if its not on sale, Which it often is!
The game comes with the conquerors DLC which makes the price even more worth it.
The game also has "The Forgotten" DLC which is on sale right now.