Good roof prism's have their place. They are well built, rugged and good at holding their collimation, more waterproof because of internal focusing, and their handling is great. They just feel so much more balanced and better in the hands. Which is why they are so popular with birders and hunters.
On the flip side, there are some disadvantages as well, mainly being price, heavy light loss from the complex optical system resulting in a dimmer image, and for birders, when in close the 3D effect of Porro's is greatly superior.
The Nikon Action EX are my favorite Bino, as they offer so, so much for the money. The on axis resolution is extremely sharp (particularly the 12X50 model) and these bino's always ranked high on the optical grade list by EdZ on Cloudynights, a list populated with some of very excellent, and very expensive binos. And my favorite part is they are cheap enough to where a hard drop and break, or someone stealing them, etc, it isn't a massive financial loss, yet you are experiencing 90% optically the same as something costing hundreds more. Downsides though are only having Multi-Coatings (no Fully Multi-Coatings) and edge performance that is not very good at all.
The 7X35 is a good bino, but not one I would recommend, along with the 7X50 model. Reason being, although the FOV on paper spec is very wide, the poor edge performance of the Action Ex pretty much negates this extra FOV, as it's mostly unusable due to distortion. I would recommend the 8X40 instead. It will still give a very wide 8.2 degree FOV, the 40mm aperture will allow greater light gathering, the edge performance won't be as bad, and all that at just a small cost in size and weight.