Summary: Camera is so so. Forget it working wirelessly unless maybe line of sight of the router/access point. Just because you can use a laptop via WiFi at your proposed location does NOT mean the camera will talk to the router there. Picture quality ok in bright light. For most likely applications the lens focal length is too long...they should have gone with a wider angle lens.
My biggest complaint is with the monitoring software which is 100% crap. I had it set up on one machine and it simply stopped working, not being able to record the .avi files to disk. I tried reloading the software, tried various settings, tried other drives, talked to d-link, all to no avail. Had to move the monitor operation to another machine. Will have to try a windows reload on the first machine. Makes no sense but I'm out of options. And btw, did the software warn there was a problem? Nope. Just saw it wasn't recording and if I experimented I could see a brief error flash down in the corner of the software. On a related matter if the software can no longer reach the cams (like the distant IP number has changed or teh connection is simply down) likewise there is no error message, no flashing of the menu bar, nothing. Only way you know is that you can't bring up the cam pictures when you try. Otherwise you have no way of knowing.
Now a new wrinkle, one that prompted me to bother to write here. I have 4 cams, 2 in use. I added another at the same distant location. Should have no effect on the existing 2, right, except of maybe reduced bandwidth across the internet, right? Well now out of the blue when one of the existing cams motion triggers it keeps recording until stopped manually or file size limit reached. I was already on pretty low sensitivity and will try even lower but this is another example of software that is simply crap.
This is my only experience with a d-link product. I can't see that I would trust them with anything else and I'm going to have to give serious thought to finding some quality cameras as these are crap. No need to spring for wireless next time as I had to run ethernet for the supposedly "wireless" dlink cameras which didn't work wirelessly!