I cannot stand-by Shift until the developers make a few decisions. I'm currently writing up an article for my service (check my signature) that you will all be able to read in the next day or two. I have interviewed one of the developers and looked into Shift's code. Then you guys can decide if Shift is a good investment for you.
Short story: It is not a scam/pump-n-dump coin, but it is not mature either. Shift is currently alphaware.
I mean, everything kind of is alphaware in cryptocurrency, especially most Ethereum ICOs that don't even have a product and collected millions of dollars. At least Shift seems to have a decent product. How useful it actually is, however, only time will tell.