I have it on my 1531. There are a couple pics in my gallery. I'd be happy to answer any specific questions you have about it. I've only used it for snowplowing and have been happy with it. It makes for a nice short package that maneuvers well. The front end can get pushed around when you have a lot of snow and have the blade angled, but I've never not been able to clear the snow. Sometimes just takes a little finagling. More weight would help.
The hydro hookups connect where the loader does (I have the pillar mounted valve). The one disappointment I have is that You can't pop the blade off and put the loader on. The remaining part of the quick attach interferes with the bucket.
I did modify mine to be more easily attached. I replaced all the bolts with pins and made a full capture arrangement for the rear. It's makes it much easier, but still not a 2 minute job. It helps a ton to be on a nice flat surface.
It is very sturdy and looks like it would stand up to grading. There are some clips that lock the spring trips for that purpose.
It isn't cheap, IIRC it was around $3k for mine.
Again, happy to answer any questions you have.
Mike