It looks like it's loaded full of gimmick dot sizes and reticules.
Hey now, some of us like those gimmick dot sizes and reticles!
OP, this does not look that much different than my Millet Multi-dot, or my Bushnell multi-reticle red dot that I run on my rifles, except that bell shape on the front... As Phil noted, you could use a Primary Arms cantilever mount to obtain a lower 1/3 co-witness, provided that it will fit between the turrets and the bell shape on the housing.
On my .22lr AR, I have the Bushnell currently set up on a .5" inch riser and a ring to obtain co-witness, but it is pretty ghetto... I just wanted to get it mounted and happened to have these items on hand. From the Ultradot 6 web page, it appears that they have some rings to obtain co-witness as well that are sold separately.
On my son's 15-22, we have a Bushnell TRS-25 with a .83" riser.
All 3 of these can be had for less than $100. I agree with the others that I would not go with the Ultradot 6 for $250. If I am going to spend more than $150 on a red dot, I am going to get an Aimpoint. I don't think you are getting anything above and beyond from what Bushnell or Primary Arms offers for half the price.