My earlier post about price was when I didn't realize that the new cube is 300mh/s and the old mini was 150. I have one of both so I can get 450mh/s on X11 (dash) paying about $12.50/day or MUE paying about $14/day. So I should ROI in 2 months if these prices stay stable.
the giant is better, i find it more powerful and consume less, is more efficient than cube or mini, also i don't have much place to put these rig, and saving space with a bigger miner is better for me, the only downside is that sometimes you need a light miner to mine some very small coins with low hash to not compete with yourself