+1 on the Consumer Reports bashers. I love consumer reports; I just wish they'd get out of the business of reviewing cars as they are not car guys (and definitely not truck guys). Edmunds rates the 2007 ST as being reliable, and they have more of a pedigree and less of a track record of giving high or low rating based on really dumb things like CR does.
I'm not going to sit here and paint the v8 ST with rose-colored glasses either. I wish Ford would have put in a drain plug and filler tube on the transmission, and I wish I could turn off my Auto 4WD so I didn;t get whip lash when taking off with a little loose gravel on the road. Ford also dropped the ball on SYNC updates (dropped it, kicked it away from the field, picked it up and threw it in the trash) :btddhorse:
I'd also like a little more throttle response and better brakes, but those I can take care of to my liking with a couple weekend projects.
But you asked about reliability issues. I don't have any big issues, just piddly stuff. Mine is 2010, with 75K miles, mostly highway. No maintenance issues yet, other than a little transmission leak that comes and goes when it wants like a deadbeat uncle.