They're solidly built and heavy.
I have an E412SS, however I swapped the stock V60 speakers out for Classic Lead 80s & G12K100s - never intended to keep the V60s which are quite dark & very scooped which wasn't really what I wanted....
IMHO the "V" 4x12 cabs are a bit of a rip-off, >£250 more for Vintage 30 speakers & all plywood construction (the sides of the "S" cabs are chipboard).