Does it have any advantage over other altcoins like newer features or something?
Nubit's value is always equal to $1 USD, so its price in BTC fluctuates to insure that that remains the case. The Nubit (NBT) price is controlled by a system whereby the token is parked and collects interest dependant on the price of bitcoin. The interest earned on parked NBT is determined by a voting system called Nushares (NSR) which also earns dividends in Peercoin (PPC). The three assets are co-related so the system is a little more complicated than the traditional alt. The developer is Sunny King....so....it's different.