I own the Sony Reader Pocket Edition PRS-350 (Silver). I purchased it from Dell in February for $119.99 with free shipping. I went with this particular eReader for the following reasons.
- Small size & light weight - you really can put it in your pants pocket.
- Touch screen - couldn't see using a physical keyboard or cursor.
- ePub format - gives more options for books, including public libraries.
While I've enjoyed reading several books since I've purchased the PRS-350 there are some things about it that I don't like. The main cons are as follows.
- Font size - the size difference between small and medium is too large. Sadly, it appears that Sony used the same font sizing on the 5" version as it does on the 6". Instead they should have adjusted the font scaling to match the smaller sized screen.
- Screen whiteness - it appears that the screen is a bit darker than the 6" eReaders on the market even though they use the same screen technology. I think this occurs because the resolution is the same but the screen is smaller which leaves less space between pixels which reduces the whiteness of the screen. Also, since you'll be reading in a smaller font size the characters are closer together giving more of a darker appearance to the screen.
If I had to do it over again and given the newer eReaders that are available, mainly the Nook Touch, I would've gotten a 6" eReader. That doesn't make the PRS-350 a bad eReader but if you go that route then form factor (size) should be your #1 criteria. If it's not then I think you'll be a bit disappointed with the PRS-350. I would've went with the PRS-650 but the extra price ($229) and lack of availability didn't make it an option.
I'm on the fence right now on whether I should sell my PRS-350 while it's still popular and current so I can get a decent price for it (probably $100-110). If I go that route then I would get a Nook Touch to replace the PRS-350.