I've never used them but they do look inviting at those prices.
I've had mixed experiences, from smokey ammo, partial loads to squibs.
I am very happy that partial (insuffient loads) didn't have enough powder to push a bullet half way down the revolver.,
Glad I count my shots too. Had to use a ram rod several times to get bullets out of my barrel.
Always be careful, once fired brass is no big deal, use them all the time.
It's the primer and powder loads quality you should look into.