It's functional - but takes away a good 4-6 inches in clearance space from the arcadia door. If you don't have a tremendously large arcadia sliding glass door - don't buy this. You're dog will have more room to get through the door than you do. Also, some of the pre-drilled holes weren't machined correctly and were too small for the screws that came with it. We had to drill them out a bit. Nothing huge, but could be very frustrating to someone who isn't handy with a drill/tools. The instructions could use some tweaking as well. The box comes with two (2) different sets of instructions. One looks to be a supplement to the other, and yet they don't cover all of the nuances. There's a third resource (YouTube video) to use as well - but that too doesn't warn you of perils should you attach the top half-backwards. Again, nothing huge and easy to realize/fix - but time consuming nonetheless. It's the little things like that "great" instructions benefit consumers. And the biggest peril - have two people! They show in the video and written manual a (presumed?) average housewife putting the door together. Mind you - this product is TOP HEAVY and mostly GLASS! You should have two people just for sheer safety sake when putting this together. It doesn't take much of a miscalculation to have that thing slide down the wall or forward/backwards if you're not careful. And not only will it break - but it's (again) super heavy and could hurt someone, and especially a pet if it was hanging around/curious about this new/cool gadget.