Pbmining can reach an ROI it will just take a while. I reached ROI in the middle of may from an investment in the very end of January
So pretty much you broke even.
How much did you invest just curious, cause I`m debating on making a large purchase. Some people are claiming it to be a ponzi since they wont show any miners facility etc.
Despite the weekly payouts.
Not much I bought a few (6ish) gh at .013btc/gh back in January and then a small amount on ebay. I made a good amount of profit from referrals from my sig. I do not believe they are a ponzi. Their mining address was public at some point but due to harassment they had to go into hiding. Also the early customers like me actually have more info about them they we probably should although we keep it private for their own protection. Their prices are not too good to be true since you can buy your own mining equipment at a cheaper rate but obviously there are other costs such as cooling and electricity to take into account. The prices though are the best I have seen and their support is pretty good.