I had some old iPhones that I wanted to sell but dreaded the hassle of posting to sites like Kijiji and then meeting someone and haggling when the phones (5c and 4s) were not going to sell for very much. Other easy methods such as the Apple store were indicating values of about 1/5 of what Orchard paid me which was about 1/2 of what you could sell at privately. I was at first concerned about Orchard and having to download the app, etc. but it ended up being a very efficient process. Both phones ended up being fully processed and I had cash in the bank in one day.
They could improve the website (especially for filtering selections for buying), build up more inventory and also make the communication process more seamless - but I am nitpicking. Overall my Orchard was very good - I'll definitely sell with them in the future and considering buying an iPhone or iPad.