I got one. On the plus side it is small and LIGHT. You can realy have it in your bag and not notice it. I find it great for traveling along with the 18-55 kit lens. It makes really a light kit to carry around and you cover almost everything with it.
On the downside, it not very good at taking shots in the range of "infinity". When i zoom in on those pictures it mostly "yeah... no. that wasnīt nice at all, looks like i shot it with a compact camera". On closer range it performs well, i have no complains there. But everything needs a bit of work, or just pressing the magic button in LR
If you are looking for a WR companion and dont want to spend as much as the DA*60-250 iīd say it performs as expected. It wont blow you away, and it wonīt let you down because it will get that picture you couldnīt get without it, althoe not crispsharp in color/contrast/sharpnes.