Upgraded to sub to get .mp4 viewer etc too. I normally hate subscriptions but this "Go" version of their file browser lets me see how videos work (I'll buy the full one soon so I don't have a sub). Testing from Windows shares, it needs SMB2 (or SMB3) like FileBrowserGO has. Some apps that claim SMB might only do SMB1 and modern Windows hates that and will just sit and spin on connection.
This program is great and fast, I can select files in the viewer with a checkbox on the picture screen, rename files, move them. Haven't tested copying from PC to cloud but I'm sure it'll be a nice tool to sort/clear out my Dropbox folders while sitting on the throne for downtime.
Only thing I might improve is a lossless jpeg rotate and crop (I scan all my mail, papers, receipts into a network PC) so cleaning, rotating and sorting is the thing I haven't automated so it falls behind and I need a handy fast tool like this to sort it all in those quick 5 min pauses in the day.
Second thing, video viewer is nice, dials down to 0.1x speed for near frame by frame. The 1s fwd/row works only once, the 15s is handy for TV commercials (also use PlayOn recorder) and works all the time. Weird big PAUSE icon fills the middle of the screen anytime the progress bar is on.