I have three SW1911s. I bought each one used. I wasn't planning on ever buying one, but the deals were to good to pass up. I figured I would eventually trade them off. I did not like the external extractor, the beavertail fitting was poor, the gap under the fixed rear sight bugged me, and the pistols just did not appeal to me asthetically.
I shot each of them, and I had 100% reliability with each one, using different kinds of ammunition. The triggers were OK at first, but were improved with a little work and each now has a nice trigger. Two are range guns, and one, a SW1911PD, is in my carry gun line-up.