Courtney Dean wrote an answer about La Sportiva Spantik Mountaineering Boot - Men's on July 11, 2014
first of all, 6000 feet or 6000 m? This is a 6000 m boot which is many times greater than 6000 feet. You can use a regular hiking boot at 6000 feet. You might not even find snow depending on location and time of year.
This is an excellent 6000 meter boot, but it's all about fit and function.
Do you have cold feet? Hot feet? Do you have a wide or narrow foot? Scarpa may be better for narrow feet whereas this boot is built on a last for normal feet.