Definitely no. Only large farm can afford to mine these days. If I were you, I would go for some PoS coins.
Yes, i think so . Shouldn't mine these days. low prifit even you can lose.
I highly suggest everyone doing their own ROI. No you can no longer (on most) get the guaranteed 3 month ROI like it once ways.
If you have low electricity you do have a chance at mining. Especially if you get good at making the miners efficient and then sell them once your done with them.
Yes it is a risk some will ROI some will not.
even with free electricity it is more than 3 months ROI right now, (antiminer= 0.35 a day and cost 2 btc, this mean 6 months roi at the very least, fucking crazy, if you buy it used, it still above 3 months roi, around 4-5)
if bitcoin stay at current price and you accept 4-5 months ROI then at the end you will probably gain something, it's a bit like gambling at this point...