The only issue I imagine you may encounter is the lower standard of IFE on the LGW/MAN fleet than the LHR fleet.
That all depends on which a/c you get.
The 5 Alitalia built a/c (Ros/Gal/Lip/Rom/Roy) do have very poor IFE (Nova), but the EX-LHR a/c (Top/Ast/Xlg) have the Matsu****a 2000 system (known by VS as Odyssey) which is the next best IFE after the Matsu****a 3000 AVOD system (known by VS as V:PORT) and has games and numerous tv/film/audio channels although it is tape based not AVOD, but it is still a pretty good system.
