Has a nice ring to it!
I could say they are legit because I'm using them and already got my first payment so i got no complains so far but their site is pretty new If i'm not wrong so It's your choice to use them or not but from my experience i would recommend them.
You get payments now. Will you continue to in Year 2 through 5? Or will you be "forced" to reinvest? Or will they just up and vanish one day in year 2 through 5?
Something you'll have to ask at some point with basically a 5 year contract.
The main thing is if you can find out if they actually have mining equipment. So far there's been no proof given yet.
Indeed, this is true for all cloudmining sites.
With cloud mining, you don't need to do maintenance yourself, but you need to trust the site owners.