In my opinion, Nixvue makes good portable storage solutions. As for deciding on the exact product to purchase, it will depend on the features needed and budget.
Currently I own the Digital Album Lite. There are no corrupted transfers in my 300 or so photo transfers.
Prior to this, I had a chance to use the original Digital Album, which came on the market about 2 years ago, I think. They've both got the ever important "VERIFY" function that is lacking in lots of other similar devices. It saved me once, while on the road, from a corrupted transfer.
However I think the in-built battery is rather weak, at least for the Nixvue Digital Album I. Only managed to provide enough juice for two 256 meg CF card transfers or so, in a temperature of 15 degrees. However fortunately I had the Nixvue AA battery compartment pack (optional accessory) with me. It takes 8 AA batts and I didn't even need to bring the Album charger with me for the trip. A fresh set of batts provided the power for my 500 D30 Raw files transfer, and still going strong.
Most importantly, I haven't lost a single photo yet, thus far.