I consigned with Haute Classics with both success and without success.
Their customer service for both customers and those selling items is the best I have experienced. They definitely have the highest payment (60% of sale) for sellers in the city, so I will always consider them first. They were willing to re-consign the second item again for another 90 day period which was wonderful of them; it still didn't sell, but I don't consider that piece to be highly sought after --- so I am just grateful they were willing to try. They offer a grace period at the end of the consignment period so you have time to get in to retrieve unsold items a bit more at your leisure. In short: they actually work with you like a team which is so rare in this industry.
I like their contract; it is the most clear of any I have consigned with --- AND they actually give you a copy of the terms. It's so bizarre in any contractual dealings that many other consignment stores think it's okay to not provide one. Anyhoozers, it is not an intimidating contract. Very straight forward. It will take you a couple minutes to read it, but they don't rush you to sign. They politely let you take your time. Kudos for that! Respectable business people. When they were re-locating, they clearly communicated that to sellers and provided a reminder at the front of the contract.
I also love that their new location smells fresh (not like Goodwill like some consignment stores) and is organized well enough that it seems like a new retail store.
I don't like that it's a pain to get parking, but I'll gladly overlook that since it's at a fairly high foot traffic location on Yonge St and St Clair.
I don't like that they don't feature every item online, but I get that some items sell better in person rather online.
I like their bright lighting for trying on clothes.
They do not offer online tracking so you know if an item sold so you know if you are picking it up or expecting payment. The odd consignment store does. They are good about answering your calls and emails at the end of the consignment periods so you can find out, though.