I've been reading about the problems with the Shield 45 on this forum and haven't had any of them myself. I bought one right away after they were released and it's been flawless.

I do agree to wait awhile on new models since every company seems that way now a days, but it's more of a recent thing since many early adopters don't seem to have these issues. That's not to say someone won't chime in about their early model, but it's the more recent posts that seem to be the bulk of the issues.