I have the MT10s and utterly love them. So I thought these shoes would be good for the spring melting season when there is half melted snow and water everywhere. They are just ok. They keep out water a bit, but not as much as I would like. I would say that when you step in a puddle, about 50% as much water gets in as would otherwise. The sides are rather waterproof, but especially if the water splashes onto the top of the shoe it goes through a bit and you will notice it. For some reason, my feet seem to dry faster in these shoes than normal running shoes, probably because not as much water is getting into them.
So they are better than normal shoes for running outside in the wet, but I would prefer something even better at warding out water.
Besides for the water issues, they fit well and feel really good to run in. I love minimalist shoes and have been a bit fan of the MT10 line for years.
Note that they rub off black all over your socks if water does get inside. Every run I come home from, there is huge black stains all over my white socks. The black does seem to mostly wash out, but I suspect some long term staining might result.