NH customer service is very good but I don't how their 1911s are nowadays with Ron Phillips gone. I have a NH Vickers Tactical and the Perma Kote does not last long but other than that it runs reliably. I would not trade your HK45 for a 1911. 1911s requires more knowledge and skill to maintain as opposed to a more modern pistol such as an HK, in other words, a 1911 is high maintenance. If you decide to acquire a 1911, it is recommended you attend at least an armorers course. You are basically trading an apple for an orange. I recommend reading AAR: Vickers Tactical 1911 Operator's Course 6/6-6/7 2009 https://www.m4carbine.net/showthread.php?t=32267 and attend his class if you have the opportunity.