I have stayed quite a few times and I always come back when I visit Athens. Perfect location for the Monastiraki metro station and the flea market which are only a 5 minute walk.
Plenty of shops and restaurants (coffee, souvenir, pastry shops, bakeries, juice bars etc), very close proximity to Akropolis.
The hotel itself it's not very modern or new but it's very decent and clean. In fact I prefer it to some modern, sterile, impersonal hotels I've stayed. Cecil has a character!!
The rooms are not very big but they're very clean with comfortable beds, air con, TV and a fridge in the common area outside the rooms.
Complementary shower gel and soap in the shower.
As always a very pleasant staying!