Humidifier Float Valve

[superduperwesman]

Bought one of these last night b/c I'd like to start mixing my water in advance. That way I can do a few water changes before having to mix some up again. I can give it lots of time to get up to temp and I can go watch TV while I let a few weeks of water accumulate from the R/O system (once I go pick it up from my old place and install it ahah)

But so far it seems to work great and the price was even better (around $8). Anyone ever have a bad experience with one?