meh, waste of time for me at the moment. In my opinion it seems like a lot of hassle for marginal benefit. I'm fine with Lightroom and my original RAW files. I like the idea of DNGs, but drive space is cheap and not an issue for me.
The advantage/disadvantage is totally up to the user. There is no all-around right or wrong answer. The best answer is what works for you.
Come on, is Adobe and RAW really going anywhere? NO! Eventually the world is gonna end too...guess I better prepare for that as well.
Someday if I
have to convert to DNG then I'll do it. The conversion option will always be there.