Guild Wars 2

Hey there,
with the F2p release of GW2 i convinced a few friends to mine that never played the game to try it out and wanted to come back and try it again after ~2years.
Have the/any classes significantly changed since back then? Or rather, what are the more favoured classes right now, what are right now good classes for beginners, maybe some (up to date) Guides to those too?
Some very important things that have changed over the course you REALLY need to know when playing GW2 right now?

Thanks in advance

For beginners I recommend Guardian and Warrior. Both have good DPS and are survivable.

Don’t focus so heavily on getting to 80 as fast as possible. Take it slow, explore each zone, just have some fun. The down-scaling is great in this game, so don’t feel forced to leave a 1-15 zone just because you are level 22. Play each zone until you guys are bored with it or want to see something new then move on. It’s impossible not to level in this game from doing pretty much anything.