How did they fit in your car (aka how much trimming?) I assume your talking about the mazda3 for atleast oneof them?
Weather here in Canada can be really bad in the winter. The spring is really slushly and lots of salt and sand from the roads to track into the car
(so far not this year).
My biggest concern will be the fit though, even the manufactorer (weathertech) didn't sound too confident about how much needed to be trimmed. The driver side looks like it should be good, but the passenger vs pics of the official mats terrifies me a bit
My car is in the shop, and wished I had made a template of the passenger side before it went in.