I didn't use it so much and not during a long moment, so I can't say if it is noisy. Using the intel GPU instead of the NVIDIA one could help I think.
For the fingerprint, I packaged libfrpint from https://github.com/iafilatov/libfprint
and fprint_demo, with frpint_demo the figerprint is recognized, but some stuff has to be done with PAM to get the fingerprint feature with LightDM.
Also, monitor this ubuntu bug report https://bugs.launchpad.net/ubuntu/+sour ... ug/1641290