I have had the FV1 for a little while now and really like it. I intentionally tried to fog it up on one of the hotter days in the rink at a drop-in and it didn’t. Even when others have fogged hybrids, I have no issues.
I have only ever used a cage before the FV1 and appreciate that it is lighter and the visibility. I have it installed on a medium Bauer IMS 5.0. I had to swap to the J-clips that came with the FV1 to get a good fit, which I assume is expected. The chin strap and pad stay in place nicely, and lock in tight when adjusted which I like. I have read some reviews of issues with the chin pad on other bubbles.
I treat it just like any motorcycle visor. Clean with water and a microfiber, haven’t done anything else to it. No anti-fog spray etc. Seems fairly scratch resistant and I keep my helmet in the provided bag while transporting.
I’d recommend giving it a shot if it fits well when you first get it. I kept mine with the stickers on to try it on first before deciding to keep it. Ordered from PureHockey, and would have been able to return it if needed.