it's worth a go if you can watch a copy without spending too much, certainly.
Beyond the dream-invading it's not really Inception, but obviously explores a lot of the same concepts leading out from there. Got some pretty cool visuals at times even if some of it looks a little dated due to using 3D CGI.
yay! PKD absolutely would've had some fun with the paranoia about what's a dream and what's a dream within a dream about a dream. And the acid, I expect.