I have a VCII and an MR (which underexposes). The VCII is accurate, small and stylish. But - you have to take your eye of the subject, fiddle with the dials and make sure those settings are adjusted on the camera. The MR - if you can get a working one - does at least adjust shutter speed, so is one up already.
However, I now use neither, nor do I use a phone app anymore. I use a Sekonic L308 hung around my neck, which I check when when approaching a subject or if the light looks to have changed. It has the advantage of having both incident and reflective readings, and it doesn't add size to the camera.