Summary: I bought mine refurb and after 2-yrs I'm still in love with my SJ20. Although it sometimes fails and auto resets, of all of my gadgets it's by far my best companion at the point I depend on it. Sony's decision of quittin' the PDA business was annoying, I have to say, but my loyalty to Clié remains intact, so whenever somebody asks me for a recommendation on PDAs I always suggest Sony Clié.
Summary: I picked this unit up for my son 2 years ago, he enjoyed it a great deal, until the battery would no longer hold a charge. That happened about a year after he got it. I was just looking into getting a new battery for it so he could use it again and went to a battery store. They checked and an aftermarket replacement cost $49+ plus $5 S&H so I'm still in search mode on that.
Summary: DON'T believe the hype. I am pretty techno-savy and this unit did not do what it claims to do. The hot-synch did not work properly, the battery had below average life, difficult to reset, poor help files. Oh, did I mention, Sony never sent me the rebate they promised.
Summary: This is an attractive, compact, useful, easy to use, durable PDA. I had been using a Palm III and really enjoyed the high resolution of the Clie's 320 x 320 screen. Using the backlight drains the battery fairly quickly, but it's necessary for ease of reading, unless you are in an ideal lighting environment. After about 14 months of use, the battery stopped holding a charge as well as it was supposed to, and needs to be recharged about every two days.
Summary: This little PDA does not have a color screen, does not play mp3s, and will not cook your food for you or drive you to work. As something to store information in, it's great though. It has 16mb of storage, which is enough to hold plenty of images and documents, and with the backlit high-resolution screen, you will see them clearly. The battery lasts quite a while because you are not wasting power on a color screen, too.