Quik is an abomination. I have 3 cameras including the Mission 1 Pro and am satisfied with them. I go on long mucky country dog walks and they've never let me down. Getting the content off the cameras is horrible though: no, I don't want to upload 16Gb of data to your cloud using a poor, 2-bar 4G intermittent phone connection. No. I don't want special editing effects that an only be done in app. Ultimately I pop the card out and use a USB adapter to transfer for editing, but what a pain: surely they could have produced something more user friendly?!
I don't like the app either, but it's not too hard to transfer the files directly to the phone over WiFi without using any of the cloud/editing things.
What's annoying is you have to do it in three steps: first transfer it to the app's internal storage, and then save it out to actual files, then delete the internal storage; and you need 2x the disk space.
(Another annoying thing is in some countries they just disable the 5 GHz WiFi, so transfers end up taking forever. Very annoying when traveling, and if I lived in one of those countries I would have definitely returned it)