Terrible. Just Terrible. First daedric ruin house in the game, and it ended up practically a completely wasted opportunity, just like the ayleid ruin house. Shares the exact same problems almost to a T. WAY too much exterior space, not nearly enough interior, and completely lacking a front door that separates the outdoors from the indoors into different cells. There is one difference, however: the portals.
I find them far to gimmicky for my taste... now, if they lead to a different cell, a cave or room you couldn't access by any other means, I'd understand them being there... but being there RIGHT when the other side of the other portal is within eyeshot? Completely unnecessary addition that is only made worse because the decorator has no option to turn them off, or must find a way to hide them from sight with furnishings that just completely waste furnishing slots if you don't want them.
I'd have VASTLY preferred just... I mean, with the other side of the portal right in your line of sight, /stairs/ would have been FAR the better option. In my honest opinion, it's just an attempt to slap something completely unnecessary onto a house just to make its purchase seem more appealing, when in fact it just makes the house design far less open to decoration flexibility.
As much as I dislike the portals and the lack of cell separation, the worst part of this house is the fact that it has only ONE indoor room. You look around the walls of that one indoor room of the shrine, and you see PLENTY of spaces where the walls could have been made to have a doorframe to add more interior rooms into the place... you know, where you could add a library, a bedroom, a kitchen, a crafting hall, etc etc... COMPLETELY lacking and completely wasted. Opportunity only knocks once, and the developers in charge of designing this house clearly didn't answer the door.
I realize some of you won't share these opinions in the slightest, and that's okay... some houses have details that sell others on them, while turning off other buyers, it's just how it is. For me though, this house was just a wasted chance on something that I think could have been far, far greater, just like the ayleid ruin house: imbalanced exterior and interior space, and design mechanics that make certain designs difficult if outright impossible to pull of satisfyingly.
Call me old-fashioned, but I prefer as equal a division of indoor and outdoor space, separate cells for both, and designs that are the least disruptive to the terrain flow and allow for the decorator to utilize them however they wish as easily as possible (stairs instead of portals, for instance...).
"Proud purveyor of Cyrodiil Pickles."