I got disappointed with the current Springfield 1911 mil spec et al (includes range officer etc). The parkerizing is easily scratched and (my fault), I did not do exhaustive research, it comes with this questionable ILS (integral locking system) which modifies the mainspring housing to allow for locking of the gun with a key.
The ILS changes most of the internal components of the mainspring housing and itself and provides questionable additional safety: because it is an add-on, it can break an actually make the gun not safe.
I replaced the mainspring housing of mine for a Wilson combat V cut and I have a much crisper trigger pull and hammer cocking. But anyway, it is now a custom as I have an Ed brown trigger, Wilson combat ms and back safety, sear/disconnect/hammer custom and metrolight sights on the way.
I did it more for the fun and learning factor than to save on buying a loaded weapon. It has been fun. But I should have bought an older mil spec without ILS or a Remington R1.