1. Realcoin is tied to the dollar, absolutely no profit can be made by investing in it.
2. It is 100% vulnerable because it can be attacked by the government anytime in which case it will drop to zero. This also means that it will be very tightly regulated.
3. Is it a good onramp and offramp? Maybe, but holding Realcoins is a no-go when there is a potential 0% profit vs 100% loss