Not good as some people have used it with apparent good results. Good to know.
" and yes, Kingo is safe. Issue before was that kingo was using vroot method, which contrained sniffers for imei and serials. Once kingo caught wind of it, they released a new version excluding said code, which is why they have complied with XDA requirements and all threads re-opened."
Sony CM-B1201 > Samsung SCH-8500 > Motorola RAZR V3m > Samsung SCH-i760 > Motorola DROID X > HTC Thunderbolt > Samsung Galaxy Nexus/Motorola Droid Razr Maxx > Droid Maxx