I want to invest in Level 5 but I have doubts so I'm waiting now.
I think its a bit on the edge right now. If you invested during the first week you would be good but its kinda getting late and maybe they will die before you get your ROI. Quite a lot of btc there, make some investigation and sleep on it before making a choice about this.
Yeah, that's why I have doubts. I think Level 5 is the best for 4.5 days ROI but I can't trust the site to live in 5+ days. They need to get Level 6-7 investments, otherwise they have to shut down before expected time.