wyndham residneces is not the same as wyndham grand even though they are pooled together on booking websites, and it certainly was not a 5 star hotel as advertised; 3.5 stars at the very best. The gym and pool are very very basic. the grand has much better facilities that you can use however. The area around the hotel is not great at all, lots of homeless and migrants, rents in the area are as low as 300 euros a month for an apartment so be careful if you wonder in the side streets. Definitely over priced for what it is, and not a 5 star hotel. On the morning of my departure there was a taxi/uber strike and they didn't even bother to tell me, i had to scramble and go with the metro, and very nearly missed my flight! I would advise, stay elsewher in Athens.