LTCgear has the best ROI potential. A lot of people have reach ROI but who knows how legit they are. I bit the bullet and bought in last week. Received my first payment without a hitch. Other cloud mining companies have a much harder time to reach ROI this includes cex, pbmining, scrypt.cc, gawminers, etc. If I had to pick another company to put my money into (which I have) it would be either Gawminers or pbmining. Pbmining is probably just as risky as ltcgear (maybe slightly less due to more realistic payouts). gawminers hashlets have been good but the payouts are consistently decreasing making it a very bad time to invest now. A lot of people over there are praying the hype they have been saying will be followed through.