Don't know about the first question but the second one depends on how quickly or slowly you decide to play. I think I had hit level cap on my main class by the time my first month of playing was up, but I really sped through it as I was on holiday at the time. You could take the 14 days and simply try out a bit of everything to see what class you enjoy and then once it's done you and your wife will be ready to play in earnest and can play together on your free 30 days.