Hal,
Just got the wife a 2002 S-Type. Beautiful Aspin Green that changes color from different angles. Putting chrome wheels on it. Too early to tell if it will be reliable. I liked the way it looked on the surface, but when they pulled the wheels off and I got to see all the cast aluminum suspension pieces, I was really impressed.
Several people I have met, love the S-Type and report no problems. The X-Type is pretty new and I have no feedback on it.
I can tell you that my wife was VERY appreciative!
Paul