I can chime in by saying I went into SFQG in hopes of healing my myriad health problems. So far, no luck on that, but I am definitely experiencing many nifty insights thru the practices Master Lin offers. (I might "need" to go thru this stuff first before physical healing, who knows?)
Besides having pretty neat meditations (re: lights/fireworks showing up and cool bodily sensations), I'm just finding my mental attitude is so much better. I will notice when I am under stress I will suddenly realize how I am responding to it. Instead of freaking out and being my typical anal self (ie "this is a travesty!" [I'm prone to hyperbole!]), I find my ego takes a backseat and I can respond to the stress in a more rational way. I don't know if this makes sense, but for me it's huge. It's like I've gotten over myself! I have to assume this is a powerful step to my healing, esp as we all know how stress kills. I am just less stressed.
Anyway, just wanted to share that!
Hugs,
Cawwie