I think they are paying now, online for 2 years and counting.
Check this
https://zooo.cc/index.php?a=rateus to see their rate and being monitored by a lot of HYIP monitoring sites. Still you will not know if they would be running for another years and that is the risk you should know before investing.
I talked to their live chat for a while in order to see what they are about.
Here's what they told me:
-They plan to keep on running for the next 8 years
-They've been running for two years already
-They will expand their global reach
Honestly, this sounds silly. How is an HYIP supposed to run for 8 years?
According to
this thread, those HYIP monitoring sites can be paid off to make your site look good, so I wouldn't trust them.
OP, invest in something more legitimate and less risky.
Probably they are lying, HashOcean (a famous HYIP scheme) claimed to be alive for 8 years also and they were working since 1 or 2 years only, I wouldn't trust anything they say...
With the 0.1 BTC OP has to invest he won't earn much interest from it. The best option is the casino bankroll, but don't expect to earn lots of money this way with a low investment like that. Another option is the new FreeBitco.in method to earn passive income, 4.08% annual interest, about 0.010%-0.011% daily.