lilrktIt really depends on how discreet you want to be. I've read posts where guys will vape in the middle of a room with the PUFFiT since it doesn't give off a vapor trail like it does with the MFLB.
andyThat's interesting. I've used my box in a theatre a few times no real problems. The thing for me is I'm getting sick of having it carted around with a trail of accessories and batteries to make it work right.