Awful. Just awful. What a waste of money. About 30 hours of my life Ill never get back ;-( (not to mention the $100)
There appears to have a serious design flaw in the IOS version of connect. I had 3000 pictures to backup. It kept starting nicely but stalling out after a while. Then I discovered why. When the backup was started I had 5gb free. By the time it stalled out at 2290 photos I only had 49 mb free on my iphone!! The app works but doesnt free storage up until it either completes or is cancelled after it stalls out from lack of memory. If you cancel the Backup it frees the storage and you can try again to finish the rest of the backup. If you have little room left in the phone you will get very frustrated having to do several small backup batches. If you do manage to get one complete backup then things are fine since you do smaller batches if new photos after that.
Secondly, if you are having a terrible time connecting with the device or using simultaneous WiFi, put your phone in airplane mode with Wireless turned on. You will find that this connects the first time much better, allows the home Wi-Fi pass through smoothly, and works well after that. You only need to do this during the initial set up. Note that if you already have the stick confused, turn it off then hold the button down 15 seconds to reset the network items in the stick itself. Then go into airplane mode and do the network set up. Then turn airplane mode off. Your mileage may vary but it solved all my issues :-)