I want to thank everyone for responding to this post. I am still intrested in some constructive Critisism on the pros and cons of a system like this. And remember.. this is still in BETA and even after release things can still chance. Also id like to note.. even with the flare up of opinions, we still managed to keep it fairly civil. I do admitt and agree that it can be limiting in VERTICAL growth. I think a major concern comes down the HARDCORE feeling that SE is trying to dictate how they play the game. To be fair.. every game or even life has these types of restrictions(yes even if were paying money). It doesnt mean we have to like it one bit. But we have a choice to make the best of what is given us. This is going to be an awesome game in my opinion. Alot of unique idea's.
I'll try to add some constructive stuff to your post, because it was an interesting read, and this has become just like the rest of the posts on the subject.
I would like to disagree with your point that "every game has these types of restrictions". Every game has restrictions, but nothing I've ever seen has had one this large, and game changing. Just about every game I've played, has let you download the software, start you off at level 1, and let you go from there. This is the first time I've seen a game fundamentally change the gameplay based on how much time you've spent.
Another thing I'd like to comment on, is the ideas of Vertical and Horizontal progression/growth. I hate the terms, and at the end of the day, I feel I should get to do what I want with my character, and spend my time as I choose. Saying it promotes Horizontal progression instead of Vertical progression implies that its just as useful/fulfilling/enjoyable, when its not. One of my favorite parts of games is to see new content, I don't like the idea of running 6 classes in the same area all week, before spending all next week in a different one.
Anyways, I'll add some pros and cons now.
Possibly less time spent leveling each job. I say possibly, because I'm not sure how this will work out, and if its really better than the freedom to level at will.
Honestly this is the only pro I can even think of.
Hitting ceilings, and/or getting stuck behind friends.
Being stuck in the same area for a while.
keeping multiple sets of gear/equipment.
possibly getting stuck playing classes one doesn't like (eg. someone only wants to level DoM)
Now I'd like to criticize some of your pros and cons, that I see holes in.
*More time farming\gaining money.. thus better gear
this isn't necessarily true. Had you been able to continue leveling, you could be able to farm more valuable things, in addition to getting XP.
Better understand of game and(hopefully)better at the game
while I agree with a better understanding of other classes basics, I don't find that redoing content will give you better understanding of the game as a whole.
More Story unlocked
I believe the story/missions are going to be closer tied to physical level, and not having more classes, so I don't think this is true at all.
It doesn't matter which levels you meet people at, you're likely encountering people at all levels.
Anyways, I hope this does come across as constructive, it was my intent, but I am dead set against the system, and its alot easier to find flaws in something when you don't like it.