Changing the plugs is pretty easy even if they break, that is as long as you have the extractor tool. I think the stories make the plug change sound worse than it really is.
I mean if it breaks you just use the porcelain pusher tool, takes maybe a minute or so depending on how efficiently you work. Thread the tap rod into the plug, takes another minute or so. Pull it out, bam done, onto the next one! lol
2007 f150 fx4 5.4 3v
33" Nitto Mud Grapps on 18" XD Addict
Electric fans, OBX Longtubes, True dual 2.5"
Bilstein 5100's all around leveled for 2" upfront
Saleen dual core radiator/180 t-stat
JDM tuned Vortech @12lb!!!