I've used it with limited success.. A few times I have had a gush of boiling hot cider go everywhere. I keep a towel over my pot though so it was never a huge problem. Be wary and use common sense and you should be fine. Also, once you open a bottle to test carbonation you won't be able to use that same bottle to test again as the CO2 will have escaped the first time.
Primary: Cherry Melomel
Bottled: JAOM, Amber Ale