If each party member has a 20% chance to get an epic item, the probability of an epic item dropping at all is ~77%. If a boss drops one epic item, the probability of an epic item dropping is 100%. Less epics the individual chance way.
At first you are underleveled which can be annoying as you can't even use many quest rewards the moment you get them, but it soon turns into heavy overleveling at level 30 or so.
That's the most annoying part. Respeccing should cost 500 zen at most. Funnily though, in DDO respec thingy also costs a bit more than the lowest amount of money you can spend. I agree that respec should cost some money. However, I think that one should be able to do a non-zen respec once per week or so, maybe requiring…
Yes, I don't like PvP. But for some reason I find the structured PvP in Guild Wars 2 fun. Usually I play PvP in MMOs just to get stuff for PvE, but even though GW2 sPvP doesn't give anything but titles, I still enjoy playing it.