The attacks will test you. If you build a gatehouse and high towers with archers SE of your castle, use pitch on the attack routes, and build out-walls to slow the invaders, the attacks are a little light.
The game is interesting and fun.
Map Design: 4.5
As always, get the battles away from your castle by building gatehouses, high towers and walls in a perimeter around your castle.
Iron is worthless except to win, so build mines late. Overbuild loggers right off as you'll need timber to build everything else.
Open your castle with additional gatehouses to speed your supplies.
As you'll have to purchase expensive troops, use slingers for in-close defense and archers in your perimeter gatehouse/towers to soften the invaders. Also build ballista on every tower possible.
Wheat and hops are your only tradeable commodities, so farm away.