A simple, retro-akin interface is introduced with IrfanView, a great freeware alternative to PSP, although, not quite as complex. A limited amount of effects may prove dissapointing to the experienced graphic designer, but reasonable to the amateur or one who doesn't deal with graphics as an expertise.
Where IrfanView really dissapointed me was where the automatic window resize took place. Some may call it convenient, but not me. I find it annoying, and it is a distraction to work with.