A very good binocular for the price IMO. It is lightweight, easy to use, reasonably compact, (will fit into a large flannel shirt pocket) well built, and it has long eye relief if you wear glasses. Field of view is a bit narrow at 294' @ 1000 yards and there is some softness at the edge of the view. I have one. My wife considers it her's though and it is currently in Chile with our son who is an exchange student there. I hope he hasn't lost it or I will have to get another one!
The only other one I have tried like it is the Nikon Travelite 9 x 25 which is a porro prism. It is very good for a $90.00 binocular but I think that the 9x version is discontinued. Nikon also makes a sturdier waterproof version called the ATB in 9 x 25-also a reverse porro. It is somewhat thicker and shorter but weighs about the same and costs about 80.00 less than the Pentax.
http://www.cameralandny.com/optics/nikon.pl?page=nikon7484
http://www.cameralandny.com/optics/nikon.pl?page=nikon7509
Bob