I have the same thing as others, it's absolutely horrible, I am just about done with MM. HTC One M8 running Android 4.4 with music on 60 GB SD card, it takes 2 hours or more on an automated scan upon plugging in, or on the scan necessary prior to synchronisation. To cap it off, MM routinely confuses the device Internal drive for its SD card (and vice versa) so I have to unplug and plug in again which is another 2 hour scan.
I've already had to limit syncs to once a week but this is still 3-4 hours of device management with several interventions overnight before and after sleeping. I have been an MM gold user for nearly a decade now and recommended the software to many people. Yet there is no piece of software that messes with my life more than MM - the number of times I'm late to work or up all night just because of how MM operates.
I'd love to know who MM's target customer is (i.e. who they prioritise perfecting the software for) as I ran it with an iPhone 4 for 3 years and the experience got worse and worse (slow syncs, missed tracks etc) so purposely bought an Android for no other reason that compatibility with MM but now I have 2 hour scans, plus use a plug-in to import music ratings back first, which itself takes an hour and always misses tracks.
If there was a better piece of software that could cope with a 400gb home library and 25gb device library and had even some of the basic features of MM, I would be gone. If it doesn't work properly for iPhone or Android, what market is MM designed for?
