I ordered a 8GB recorder of a different brand, which could in no way connect to my PC. No way of showing in Windows 10 as a file folder. Changed cables, changed ports, read the docs. It just didn't work. I returned it and tried this one. This pen tape only has 4GB of memory, but it works perfectly. No issue connecting to a Windows 10 PC. The computer immediately sees the device as a storage drive. Smart by pen tape to embed the USB connector into the recorder, zero cable to mess with.
So far I recorded 3 hours and over 20 files of audio, and the battery is still showing full. 4GB is plenty of storage. Unless you plan on never clearing the device memory, I don't see the need for more.
Native microphone quality is OK. I also bought a small lavalier microphone and connected it by wire to this device. The quality is nearly studio quality, after running the sound files through a sound editing software to remove background noise.
The interface is intuitive, buttons are where they should be and do what they should do. This is the recorder I was looking for.