I tried the Gloss Black goggles with the grey polarized lens. They're super light (lighter than I/O's and crowbars IMO) and they've got a huge field of vision.
The lens is pretty good for super sunny days, cuts out glare really well; that being said, although on the electric site it doesn't recommend use on dark days or nights, I've used it on those and it actually wasn't too bad, I was able to see pretty clearly as the tint isn't really dark. They haven't fogged up a single bit either. The only tiny gripe I have with the lens is that the little electric logo at the top is visible in your peripheral vision sometimes, you get used to it though.
The goggles seem pretty durable and they're really really comfortable, probably the most comfortable goggles I've tried. The foams really soft and cushy, and it fits my face really well. I'm not sure how easy it would be to change a lens as I don't have another lens but it seems like a crowbar, with less material to pull on so I'm guessing it would be a little harder. This probably isn't a goggle for you to use to be switching lenses all the time.
All in all these are super comfy goggles with a massive field of view. They're a bit pricey, but you could probably find a sweet deal on some older ones.
These goggles we're sick!! Definitely one of my favourite pairs out there.
The only issue was they we're just a little big for me. I've got a small head and they didn't fit under my helmet without getting pushed down to the tip of my nose. (And I've got a big nose!) But that's not the goggles fault is it?