I purchased this frame about a year ago and it has worked very well...I resized photos to 480x320 as recommended by another post and that resolution works perfectly...Be sure to use a good photo editing tool that does a quality job of resizing the image, and your resulting 480x320 files will display perfectly on this frame...
Opened up, put in the stand, plugged in and then inserted a SD card from our camera...Quality/resolution is very good and the features are basic and simple to use...I love this frame and would recommend it to anyone looking for a good value, as long as 7" is the right size for your space...