Right now the most attractive one is DeepOnion. It is just unbelievable. Every week, (for legendary ranked members) they are giving away as much as $1,000 worth of coins. If you participate in all the 40 rounds, it means that you earn $40,000 without any work at all. And that particular currency is having a very high potential for price increase.
I signed there and didnt receive anything. Also used their wallet but it wont connect to their network.
Same here, had issues with their wallet and the whole process is too complicated, ended up giving up