I have the Geotagger eigendlich quite happy for some time now in use and up to date. This applies to the deviation on average a few feet I can handle. This is probably due to the different approach to identify and store the GPS data. For the device, however, is ready to go and the ACCU is extremely durable. What use is the best Geotagger if the part after a short time no more juice has ... No - this is a clear advantage of the device, it draws only when a picture is taken and so uses only a minimum of Acculeistung.
The subsequent processing of photos incl. Of calibration of spatial data may perhaps be improved, but it works so far without problems. That's what I can not find anything negative. For me, the software runs under Vista and Windows 7 in any case easily.
There are other solutions of geotagging but this seems to be good, and worth the price all here.