Yes, many bad experiences with them. They know "some" truths, but they tend to skew and distort the rest to suit their own agendas.
Many "fringe" Christian sects do this, like the "holy Rollers, etc.
I do consider them a very extreme and fanatical sect, but to each his or her own.
No offense meant.
A word to the wise though, just be very very careful, keep an open critical mind, and whatever you do, do not accept their word for anything, rather look and examine everything they say deep "inside yourself", that is where God will provide the true answers to any questions you have.