These aren't the top of the line boots, but they are very comfortable and the lacing system is great! You can't beat them for $150. My feet stay warm and comfortable all day long. The inner boot forms well to the foot which keeps you warm (especially if you have smartwool socks!!!). These laces are extremely durable, so don't worry about them breaking anymore than you would with normal thick laces. They are also true to size. If you want excellent boots these are completely worth it for the price.
I will say, they are probably better for trails than park if you consider the flex and weight.