that looks pretty nice setup for the advertised weight. i'm not sure the capacities of your loader compared to mine, but when i was looking for a grapple for mine most of the brush style ones i found were 500-900 lbs in a 60 or so width range. specs on my h165 loader say 1600lbs at full height, 2100lbs at 5' height. it didn't make sense to lose that much lifting capacity on the implement. i ended up getting a log grapple instead of the brush grapple because the weight was a lot less - a friend already had the same one, so i knew it would do fine. i've been happy with the brush capabilities of the log grapple, but yours should do even better in that department - i occasionally will have to pick up a few of the smallest pieces of brush by hand since mine is not specifically designed for brush. Mine was bought from a local used tractor / small farm equipment dealer, but it's lithunian made and comes with british standard fittings. i had to make up adapters which was a hassle. an in-country manufacturer that can set it up the way you want is nice. if i had seen these at that time i probably would have gone that direction, though i am getting pretty attached to the narrow profile for getting in and under stuff that isn't straight.
