We are a small office and we just got 3, all 3 have had varying levels of problems ( software and hardware ). One is dead in the shop with no ETA for parts, mine is functional when the wifi doesn't die, and the third works, but only for the primary user because of some quirk with the finger print software has put on a BIOS lock so we need her fingerpring to even start the system.
The power supply is like using a 65W adapter on the MBP, yes it will work, but it runs at a reduced speed and will not charge the battery as fast. The fact that this was an "upgrade" without a warning as to the drawbacks is ludicrous.