Purchased mine from Canada computers yesterday and here's my initial comments:
Well built and packaged unit. Everything is cleanly packaged in the box and individually sealed in bags. The box comes with necessary cables but no software (you need to download from their site, after Oct 9th).
The unit was easy to install and configure. Just make sure you have a long ethernet cable as there's no wi-fi. You could also use other home networking kits, like those that use home power, if you want.
Setup was a breeze. In minutes, I was streaming away... The hardest part was to enter my sling account and password without a keyboard, but you only do this once.
I sling to a slingbox classic (UK) located in France. The uplink is 860kbps. The picture was truly amazing. Almost cable quality! Just ensure you set the resolution to "advanced mode 640 x 240) for better quality. I was watching it on a regular tube TV via composite cables, so I'm sure it would be better via svideo or via HDMI on my HDTV.
Controlling the slingbox is childplay, just use the remote to change channels like you would with your regular TV. It was amazing, I ensded up watching French TV from france all night just as if I was there.
Some bugs with the software though...
1) When switching to "high resolution" (640 x 240), I sometimes get to horizontal bars across the screen. These go away, if I switch back to low res and then back to high res. Stangely enough, I get some when configuring the slingbox via the regular player over there (in France), but never got it remotely.
2) The throughput is usually fine (at 860kbps) until I change channels. then it reduced to 650 and never goes back up. I need to stop and restart the streaming to get the full speed. As well, when in low res, I sometimes get maximum 250kbps...
3) I can't figure out yet how to get access to all the buttons on the remote location's remote control. I'm sure it will be posted on their site after official launch.
The manual is pretty basic, but gets you going at least.
This is an amazing gadget, you won't regret it! Now please bring on the slingbox client for the iphone and we will be all set