Matt Lutzwrote a review of MSR Lightning Ascent Snowshoe on December 9, 2009
The best part about these shoes is the plastic straps. These do not freeze up like a nylon strap, and they can be used while wearing big dumb mitts. Also, the straps can be shortened by cutting the non-handle end to eliminate excess. If you choose this route, remember to ensure that you have enough strap for your largest boots and to measure twice and cut once.
I recommend folks get the 30's if they are going to be dealing with powder. I sank to my hips in powder in 25's and 175 lbs of gear (bodyweight + gear). On more hard-packed snow, smaller sizes are acceptable.
The teeth and grip on these snowshoes is exceptional, especially on hard-packed snow and ice. The teeth dig in and hold nicely. I have distinct marks on mine where the paint has rubbed off due to wear, but the points themselves are holding up nicely after two seasons of use. I also have not had problems or durability issues with the clevis pins that hold the bindings to the snowshoe body
The grips are also acceptable for deeper powder. The side-to-side bars underneath the decking help to prevent slippage on uphills and downhills. Like all snowshoes, they are easiest to use when you have trekking poles (unless an iceaxe is necessary) in deep powder.
The elevators on the heel should be moved forward about one inch. Otherwise, my heels (mens size 9) on my hiking boots and winter mukluks slip off too easily. It is a nice touch for long, steep inclines. If you stay out of the mountains, you don't need this feature. (those who frequent rolling hills also need not apply for ascent feature).
Finally, while these snowshoes are not the lightest out there, they are an acceptable weight and do not cause excess fatigue. For storage, they can be packed flat for carrying on the top of a pack should shoes not be necessary.