There was an article a few months ago, I think it was in the American Rifleman magazine, about some of the pistols that were used by the French in WW 1 and they mentioned that large numbers of Spanish pistols (similar to the Colt semi-autos) were purchased as they needed lots of guns for the war. They worked well but because of soft steel they had to be made heavier, with beefier parts to work, the soldiers felt the extra weight in their holsters and did not like that, but they functioned.
I have heard over the years that other Spanish guns also use soft steel, don't plan to buy another one unless it is for limited use and cheap.
I shot off the last of my .45 ACP and checked my RIA 1911 carefully. The ejector is noticeably soft and is peeling back, but it would take awhile before it would need to replaced, on the forums there was mention of this being common with these RIAs. There is surface irregularities on the feeding ramp, it could be the steel peeling back, or build up of the bullet jacketing. I checked my other 9 MM pistols (Rugers/Springer XD, etc) and the feeding ramps are clean and polished, the ejectors are good, not at all like the RIA gun, they have around the same amount of ammo put through them (600 rounds).
So far I will keep this gun as a possible trade down the road, it is very reliable though, and the rest of the frame and slide look ok. The barrel is weird, when I got it it needed to be cleaned and I noticed what appeared to be bad machining or corrosion of the grooves of the barrel as this area is rough, the lands are fine. It came with a fired shell casing, I researched it and it is military issue, made in the Philippines. It may have been corrosive, that might explain the roughness of the bore as it was not cleaned. Still, that is not a good way to make a barrel on a new gun.
I think that the 1911 is a forgiving design, ol' John Browning come up with it, and it will be interesting to see if there are any complaints once these get into the 5,000 plus ammo consumption realm.