These are good cards for (non-pro) digital cameras.
I have been using them in my Raspberry Pi and other projects with great success and would recommend.

I have managed to get a maximum sustained speeds of 20MB/s read and 14MB/s write which is not too shoddy though the fifth star was lost because the packaging states read speeds of "up to 98MB/s". Which I have been unable to do despite having technology that is fast enough to handle it.

This is actually second ScanDisc Ultra card 64GB I bought. I am using first one with no problems at all. Good transfering spped on my phone but also when transfering data between my other devices like computer. As bonus you get preinstalled on card, Memory Zone App which when installed on phone is very useful to manage files across all your conected devices including acces to cloud storage.