I've owned Dye I3's and a set of Dye I3 pro's. Great masks, being light, comfortable and provide good face coverage. But.... I kept steaming up and had to buy a dye fan to keep them clear, and to change the lense is an absolute bitch.
So after a recomendation I bought a pair of e-vents. As long as I use a thermal lens (double pane) it never steams up and I've played in the rain and some very humid days. Changing the lens takes about 30 seconds, which is great if you just need to give it a bit of a clean.
I find them very comfortable, easy to maintain, and never have a problem with them on field.
The only down side is the foam has come off a bit, but this happened to both my Dye's which is a result of me being a sweaty betty I think. Bit of glue though and all is right as rain.
Hope useful.