Summary: Inexpensive travel zoom with controls for horizontal and vertical shooting
Pros: Inexpensive, Broad focal range, Easy to use, Automatic panorama stitching, The broad zoom range on offer here is always going to come in handy, enabling a wide range of framing options without the photographer having to step forward or back. Given this the pricing also seems very fair, since it's no costlier than your basic 5x zoom compact.
Cons: Autofocus easily confused, White balance varies, Some 'effects' look like mistakes, So-so battery life, Twin controls are a gimmick, The Pentax Optio VS20's picture performance is hit and miss, with occasional white balance issues, an inability to determine what it should be focusing on, and familiar compact camera bugbears including burnt out highlight detail and purple pixel fringing between areas of high contrast.
Excerpt: It's not often that we see a camera with a groundbreaking design, but the VS20 is exactly that. It has two shutter buttons, each with a zoom lever encircling it. One is in the usual place on top of the camera, while the other is on the right edge when viewed from the back. It's designed for more comfortable operation when shooting in portrait orientation.