Im using Toshiba Flashair class 10.
no complaint from me so far.

might not be for those who shoots huge megapixels & bursts as card is rated to be slow.
for a 5mb file transfer to phone takes 2-3sec per file.

there is no shoot and view
no auto download
just plain gallery like app showing recent photos,
shoot new photo & click refresh (or set to auto refresh)
click photo to view
or select several photo to download.