I believe that they are functionally the same, pretty much identical boxes. Mine says "Solomend -HD PVR 800" on the front.
Mine has a Scart connector on the back , there was talk that some of the newer versions wouldn't have the SCART connector, nor the ethernet port ( only used for hacking, using keysharing, legal in Europe, by the way ). They use the same firmware.
I'd buy from Sadoun because he is always supporting this hobby. I really like the idea of keeping these "brick and mortar" stores in business. He is willing to check out various things on the side, that might be handy in the future. I'm pretty loyal to Sadoun and his folks when they have a competitive product, and this is a good one.
[edit] The only real problem that I have with this box is the lack of ability to identify whether or not a channel is DVB-S or DVB-S2. The receiver treats them all the same, there is no FEC info, no modulation info, and no manual PID entry ( although THAT can be done thru the channel editor, for CW on 91W, at the least ). It's not a good receiver if you want to play detective, but I like it's simple interface, fast blindscan, and good video. I also wish that all ports were available at all times, but this is not the fact. If you select 1080i resolution, you really cannot expect anything from the composite video port. Also wish it had an rf output, but it doesn't. In many ways, it's not up to the Azbox standard, but it's less expensive, and much easier to work with. [/edit] I'm considering buying another from Sadoun.