I have worn duty boots as an EMT and Emergency Services Officer for nearly 30 years.  These are pretty good.  I wear these 1 or 2 times a week and my Under Armour Valsetz 3 to 5 times a week.  Prefer the Valsetz for comfort but the 5.11's provide sturdier protection and are stiffer.  Both are great boots, just depends on preferance I suppose.  It is nice to have a side zip for easy on and off.  The 5.11's will offer you some weather protection where as the Under Armours will not.  You will need a little break in time but not excessively so.