Not sure what maestrale means but I love them.
Perfect combo of lightweight and performance. Amazing boot. Super comfortable. My first day in them I hiked over 14,000 vertical feet, no blisters, no foot pain. Awesome range of motion in tour mode. I love the middle buckle. I keep the middle buckle loosely buckled while touring, all other buckles unbuckled for comfort. It keeps my heel in place and prevents any slipage that could cause blisters. Like others have said, keep an eye on the bolts that hold the buckles they can tend to loosen. I put red loctite on mine and permanently solved the problem.