The Sherpa GTX is an excellent all round winter/alpine boot for men with slightly lower volume feet. I chose these over the Scarpa Manta partly due to their waterproof lining (which the Manta doesn't have) but also primarily due to the foot shape. With the Manta, Scarpa have moved to a higher volume last (the mould the boot is made on) than previously, whereas the Asolo last is lower volume and slightly narrower. Fit is everything with boots and these fit my feet perfectly.
I found them to be stiff enough for ice-wall climbing yet with enough give in the ankle to make winter hill-walking comfortable. The toe shape is more pointed than some too which was an advantage on more technical ground. The rubber rand protected the boot well on rock and I expect these to remain a favourite for years to come!