Amazon's related purchases system led me from the aforementioned Ritek model to the Kanguru Flashblu 2 product line. I don't have any personal experience with them, but I read through the comments on the various models (2, 4, 8, 16GB). There were about 10 reviews total. Bad experiences included:
- one customer said that 5 of the 30 models they ordered arrived with broken switches (the 4GB model)
- another reviewer with a similar (near-)DOA issue, this one for the 2GB model. The chip apparently came loose from the body of the device within a few days of reception. The protagonist was able to remedy this with some super glue.
- A couple of people complained about the fact that the cap is not attached to the body of the device. Personally, I would recommend that these people learn the skill "Glue And String".
- Although no-one complained about the Kanguru's switch itself, someone did mention that the label for it was logically inverted, i.e. the "Read-only" setting was labeled "Read-Write" and vice versa. "Pen and Sticky Tape" could be beneficial here.
Other than these complaints — gleaned from 3 or 4 different reviews — reviews were overwhelmingly positive; most customers gave their respective model 5/5 stars.
A comment on the Ritek Ridata Twister mentions that it has a relatively awkward-to-use switch: it is apparently a DIP switch that you need a paperclip to operate. On the upside, it is a 32GB model.