The control is by default, done with W, A, S, D and mouse, and is very well made, but you can also change it to point and click. The control over the interface is incredible, you can customize every panel, where to be and it size. 

The weapons, armor for your character you can get them from the players, quests rewards, drops from monsters, or craft them, by gathering materials and craft them in town at the NPCs. You are able to salvage any item with a salvage kit, so this way you get materials. Also the item system is something like in Diablo, we have white items, blue items, rare and unique items, each with more attributes added to the item. You can also add special characteristics to your items with special runes, bought from merchants, or found in your adventures. 

The game engine, is one of the best I ever get my hand on a MMO, very optimized, works well on high details even on old computers, of 2-3 years ago. The graphics of this game on high details are superb, the level designers, art work people did a great job, just go to a forest and see how nice is designed, the characters, armors, weapons are even better. 

The music is also great, epic, medieval-fantasy theme, doesn’t get repetitive because of their quality and because they are multiples songs, and the sound fx is just as it should be. 

Having no monthly subscriptions, great competitive PVP, great PVE content, Guild Wars at this moment is one of the best fantasy theme MMORPG out there, even if is instanced.Even if you get bored of the PVE Content from the Guild Wars Prophecies, which is the main game, you have 3 expansions at your disposal for more PVE and PVP content. 

Kudos to the developers! 

Good source for new players: http://wiki.guildwars.com/wiki/Main_Page