I know it's not de rigueur to post anything positive, but hell, why not.
Tonight on Argo, we had a raid flll in under 10 minutes. No problems filling raid trains the past couple of nights, either. Then continued on into farming tokens etc in eVon and eFens. Never had a problem with the LFMs filling. All who joined were capable and courteous. We took applicants on a first-come, first-taken basis.
I am sure some people have bad luck with the LFM. Even though I spend most of my time in static TR runs with guildies, though, I do have to say that overall, my experiences on the LFM have been positive. Not just tonight, but over the past 3 years.
Yes, there is a lot that could be better. But from what I can see, playing mostly in the server's dead time overnight, things are going pretty OK on the LFM front.