I had this one built on a Colt Series 70 frame about 14-15 years ago:
Nearly a full-house build; Bar-Sto barrel in a Caspian barstock slide, old school Videcki trigger, Chip McCormick fire control parts, Ed Brown beavertail, springs, and innards, S&A funnel, Bo-Mars. Everything but gas pedals. (I hate gas pedals.) Pistolsmith thought I was nuts when I handed him the frame and the parcel of parts I'd imported- everybody was into .38 Super, 9x23, and even 9x25, back then. He seriously offered to build me a .45 with my pile of parts instead, and take my 9mm Bar-Sto barrel in straight trade. But, I wanted a 1911 that would eat cheap ammo out of a third-world wooden crate, in a caliber not so intimidating that I couldn't hand it to newbie shooters. Plates, casual IPSC and PPC, even NRA and ISSF bullseye... it's done them all, and well enough for my tastes.
Reliability has been superb. The pistolsmith knew his trade. Probably doesn't hurt that I started with a 9mm frame, though. However, as others have hinted, magazines can be a problem. With Colt factory mags? Flawless. With Mec-Gars? It becomes a stuttering horror.
If I was gonna buy more magazines for it tomorrow, I'd buy more Colt. Or I'd try STI's stuff.