It says on the website that height's unit of measurement of MSFP 2017 is in meters. However, as I looked into some real building examples on Google Map street view, they height looks very inaccurate (seems to make more sense if it's in feet). Here's are some examples:
Coordinates: 36.717682, -119.78708. Height according to MSFP 2017: 10.11 meters (doesn't make sense, 10.11 feet is more reasonable?)
Coordinates: 36.719514, -119.78763. Height according to MSFP2017: 10.51 m.
If you know more accurate building height data sources please let me know.