East Midlands airport is also using a similar system. The thing is, many airlines prefer more in their announcements than just ''Airline Flight1234 to XXX, is now ready for boarding at gate XX''
I know many of the gate staff in the end were having to make their own announcements anyway so I dont see the point. The only good thing about it in my opinion is that it repeats it in the language of the destination the flight is heading.