This is my first test with the Videomic X. But I’ve handled enough mics to say straight away, this is a really good one.
As far as on camera ambient mics go you don’t need to own anything better. If you need better, rent it.
It has both 3.5mm and Mini XLR, solid build, great filters, great gain and a superb sound.
The samples is recorded with a Canon XC10 which has good pre amps. On a DSLR type camera that generally have weak amps the +20dB gain should probably be turned on.