Not familiar with that product, LH, but if
A: you have an adjacent tree which is filling up your gutter in Autumn
B: the tree has Oak-like lobed leaves
c: the product is easily removable if and when the gutter does need cleaning
D: your house is high or has difficult gutter access
it may be an asset.

Another consideration. In certain Winter conditions you can get an ice dam where ice trapped by the gutter backs up onto the shingles and in Spring the melt from the top penetrates the roof, being unable to get into the gutter. I've read about this, it happens in cold parts like yours. Never myself lived anywhere shingles are common, and houses didn't have eaves.
There are cheaper ways of keeping leaves out of the gutter. Plastic mesh, mostly.