Pixeluvo – Photoshop Alternative for Linux

I started using Linux since 2008. I always saught for a Photoshop alternative for my Photography stuff and always get disapointed. From Photoshop + Wine, Photoshop + Vitualbox, Pinta, Gimp, Picasa, Shotwell, Darktable.
But this time I discover a super lightweight and easy to use software call Pixeluvo. It not a free software but provide 30 days trial after that you can purchase around 40$. It made me a feeling of a modern Photoshop interface its legendary hot key and layer system.