Pera parma is an excellent hotel, the location is perfect, in the middle of istiklal street, they have a very good coffee shop opened 24/24.
Also, they have a very good breakfast.
The special things in this hotel:
1 Historical (since 1895) if I remember
2 Safe and near to istiklal street (30-35m)
3 Not noisy, because all the hotels near to istiklal street are very noisy at night because of the music in the night clubs, but in pera parma, realy, we didn't hear anything, I think because of the sound proofing rooms.
4 Perfect for families, because you will find the respect and the calm in this hotel, not like other hotels and you know what i'm talking about :)
5 This is the last and the important point, the staff in pera parma is exceptional, where ever you go, reception, coffee shop, restaurant.... all the staff are very helpfull and very kind, especially the guys in the reception, one them helped me a lot during my stay, his name is Şahin, he was always there for us, he made many reservations for us with trusted companies (thanks for that again), and as I said all the staff was exceptional, they speak english very well, you will not find any problem with them.
Also, in the coffee shop, the staff are very kind, especially Seymen and the girl who was there at morning (I don't know your name sorry).
To resume, it's an awesome hotel that worth the money value.