I use PaintShop Pro X2 every day, IMHO it even outperforms the sluggish Photoshop (in the areas I am using it).
That said, there are a few plugins that must be in place before it is perfect :o)
I tried Elements 6 a few days ago and cannot see one single
reason why it should be preferred before PaintShop Pro X2.
Currently I'm considering bying "DxO Optics pro 5.0". I have
a 15 days trial of it running right now and it is *the* best
for digital photos. It's a whopping $169 for standard version
but it is worth it, no doubt!
http://www.dxo.com/intl/photo(The Elite verson just supports more cameras,If you don't
own a $2000+ SLR camera there is no reason to buy it.)
But for editing all kinds of GFX PSP is the only choice, IMHO :-)