I had fun owning my WEM but I found it to be pretty dull and lifeless until it was wound up. It basicaly did one sound really well, which was bluesbreaker-ish Beano-ish grind at reasonable volume levels (i.e. pub gig levels).
The cleans were okay, mid-heavy british cleans, definitely no Fender Sparkle (not that you'd buy a WEM for that!)
The VC15 I've just got is like a quieter (as in noise levels) more Versatile WEM, half the weight with much better cleans. At full whack the WEM was a bit louder and it did it's own trick better than the Laney but the Laney does several other the WEM can't do.
Glad I've owned a Dominator but as my only amp it left me a bit limited. Too loud to sound good at home and not enough headroom for any sort of cleans with a loud drummer.
However, I'll always remember it for a gig I was playing 'All You Love' at with my 335 - Full Volume, Killer Tone!