Do you mean hellocosplay or the eBay seller? If it's from hellocosplay, is it the old or new version? I'm going to guess it's the new one since it has the stitching on the lapel edges, which is (according to them) the only difference between the two (though I'm suspicious about that being the only reason for the price difference).
I can't wait for pictures and/or a more detailed review!
From the pictures, it looks about as thin and flimsy as the Rubies one! Considering that it costs about as much as hellocosplay's offering (when you include the ridiculously high shipping cost), I'd much rather go with the latter, which is made of a wool blend. I'm looking for a coat that will also serve me well as a winter coat.
By the by, has anyone here bought a Joker coat (or anything else) from cosplaysky.com?
Well, I still do not have those pictures yet, but I can give a bit of a review.
My Harley got me the Hello Cosplay four piece set almost exactly a year ago and for the price, well heck. It wasn't bad at all. I mean it naturally is not as accurate as Magnoli, my Magnoli excluded, but it's nice all the same. I like the fact the coat is actually sort of light, yet it keeps you warm and is rather durable. As a matter of fact I used the Hello Cosplay coat as my main winter coat all this past winter season. Thing looks amazing with a green scarf. Sorry I am digressing here. The color is a bit darker then what I feel is the right violet for a replica, and the lining is a bit off. And of course if we really want to get picky the stitching is not as accurate if you are a die hard like some of us here. XD But it's super nice all the same. Oh and I like how the back of the coat actually has more accurate princess seam lines then the magnoli. It's just missing the four separate panels. Now the things I did not like about the full outfit was, the fabric of the shirt seems to be very thick and almost uncomfortable to wear, the vest is very thin, almost like a canvas fabric, with shoulders way to wide to be accurate, and the pants. Well they feel like you are wearing some sort of very thick paper based fabric. Not really that comfortable at all. Not too mention they are a very dark blue, almost jet black, instead of purple. But, for what it's worth... I won a costume contest on halloween in the entire outfit, so to the untrained eye, I suppose it works.
As for Magnoli, the guy is amazing. His patterns, so far, are the closest I have seen to being accurate. With the right touch ups, it's like bringing it right out of the movie. Hell, take Woodstro for example. Not to mention Chris, but then again I am not sure all of Chris's is Magnoli now? Either way his work on the outfit is breathtaking too!
Back to what I was getting at.
All the pieces I have received from Indy I have been highly impressed with, excluding some small nit picking. All except for the damned over coat and gloves. For some reason, things have changed from what he used to be selling. The glove pattern has changed, there is now a seem on the outer index finger that was never there and the color has changed. Which isn't bad, I feel it is a bit more accurate with the color, but that seam makes no sense to me. His shirt, for some reason, went from that very dark grey almost violet lined look like in the movie, to a very light blue with dark blue pattern. Actually if you were to fade the Hello Cosplay shirt, it would look exactly like the shirt I got from Indy. Now for the over coat. Now I may be going more insane here then I already am... that is why I am praying I can get my camera to work so I can get some advice from some of our experts... just to see if I really am correct on this or not. Any who, as stated earlier... the color of my Magnoli coat is just way too light. I mean it is really almost like a pale purple. The color almost looks spot on with the color of Ledger's promo shots, under certain lighting, but for the rest of the outfit... it just does not work. The coat really stands out when you put the entire uniform together. If you notice, the accurate look has gloves and pants that seem to be a tad bit lighter then the coat. With this outfit, the coat is a hell of a lot lighter then the gloves and pants. It doesn't math in uniform at all. Aside from that, some of the seem work is a bit odd. There is not that princess seam like there is on the actual real coat along the back, my cuffs are cut in a rather odd way... to which they do not hang down like the real coat. They want to stick out from the inside of my wrists rather then the bottom. If that makes any sense. The coat, as you can see is my main problem.

Which sucks, because I have already paid close to $675 for it and god knows I don't want to purchase another.
Well there you have it, hope that helped, and sorry for the very long post!
And one last thing, well two things really. Some one mentioned the price of the Hello Cosplay coat going up because of the correct stitching. Really? Mine had the correct stitching, which was a year ago, was it cheaper before then?
Also, woodstro, Chris if I remember correctly, mentioned the stitching that goes all around the back of the neck being non accurate. My Magnoli coat has that stitching that goes around the back of the neck too. Did your's?