I like that you can upload your own photos, as well as use their library of stock images to create unique designs at no cost! The customer support is also great - they respond very quickly whenever there's an issue or question with my account/pixlogger itself (which has been rare).
If we have questions about how our website should work in general it takes longer than expected before someone responds back. We are using pxlager so people within our organization will be able to find design elements easily without having access to expensive software packages such as Adobe Photoshop CC etc..