GW2 vet here, (few months from my 4 year loyalty bonus xD) you're in for a ride. My advice is to take it slowly and actually listen to what people say. The worldbuilding done through the storyline quest and just generally listening to Scouts talk about the nearby areas is amazing. And the vistas are well worth watching. Where most MMOs you just want to rush their content to max out, the levelling up really is the experience for Guild Wars.
If anyone here is interested, I have a small guild already established. The only people in it right now are a few friends (several of which have stopped playing anyway) and I would not mind using the guild for the Skylords Reborn folks
@Shotty if you or anyone else is interested, feel free to add me! My friend ID is Nightrein.6410. Either way, have fun!