I think you're bang on topic. Its a nice device, but you need to be careful that its headline claims of 14 bit RESOLUTION, which it spouts everywhere turns into only 10 bits of ACCURACY.

For capacitance, AD and QPROX have extremely nice devices , with up to 24bit precision, so they claim, provided, in the AD case you wait for 1024 samples !

And of course, you insert uncertainty as you resolve the time output BACK into the digital domain.

Steve