I had the full version of Photoshop loaded on my last PC and it was thoroughly wasted on me. The majority of the features were unnecessary for photo adjustments and it took ages to open and close the program. I also did not like having a separate program running as a file browser. This made it slower and more cumbersome still.
In contrast, this fairly basic program is easy to use and apart from the shortage of ready-made picture frames, it enables you to transform photographs in all the ways I could think of. I have used the `guided' adjustments to very good effect. I invariably need to the alter the brightness of my photos and it's possible to apply this to the darker parts of the image only without ruining overall clarity. In the past, I've selected a darkish area of the picture manually and the transformation results have been fairly mediocre in comparison.
The worst aspect of the program is the fact that it does not recognise the old folders you've probably placed your files in. Instead, it puts all photos into one massive folder and then you need to apply tags to individual photos or make up whole new sets of folders. Rather than mess around with this, I've tended to sort all my pictures into date order and leave them in the folders I started with.
Thoroughly recommended. Its only rival for the money is Corel Paint Shop Pro Photo X2, which is similarly good value for money; more labour-intensive, but easier to browse around.