I used to hotel for a 2 night stay. The hotel is close to Omonia subway and on a central road so my trip from the airport was fast and I felt safe. The hotel staff were very helpful and friendly, and also had a great sense of humor. The room super clean, although mattress was a bit too hard for my liking. Breakfast buffer was satisfying.
As Athens is not a huge city, being right behind Omonia is convenient with access to transports and shops.
You will be in a popular district so do expect a bit of dirty roads and noisy surrounding before you enter the hotel.
The hotel seems to be recently refurbished to a nice standard. Despite its lively location, the hotel is very calm and very clean. Definitely positive.
The staff at the reception is very kind, fluent in English and helpful.
In the city centre, Omonia Square is a busy traffic node, where six major roads meet. There is also a metro station. It is home to several large modern hotels, popular with tour groups, and is close to the National Archaeological Museum and the Central Market. Crowds traditionally gather here to celebrate national sporting victories.