I was a pretty hard core Priest fan in high school - first concert, we played "Living After Midnight" in my high school band - but I fell out of favor with them after Turbo and Painkiller. They didn' t really hold up over time for me; so much of the 80's metal (Priest, Scorpions) seemed so cheesy and contrived after delving into prog and later, prog metal (like Dream Theater). But I've since gone back, and there's a lot of good stuff in that catalogue and this is one of them. I'm not sure there's one skippable song on this record; sometimes I'll brush over "Freewheel Burning", because of all the falsetto singing, and "Defenders Of The Faith" because I'm sort of past "pledging allegiance to metal flag" bullcrap. But Sentinel is an AMAZING track, and may be my favorite Priest song ever. This is one of the recotds I go back to more than most in the catalogue, and has stood the test of time pretty well.
(Honestly, it's almost embarrassing how much of the lyrical content went right past me at that time. And I was a teenage boy!!!)